NATIONAL BENCHMARK TESTS PREPARATION COURSE NATIONAL BENCHMARK TESTS PREPARATION COURSE Table of Contents QUALITATIVE ANALYSIS ......................................................................................................................................5 READING COMPREHENSION QUESTION TYPES AND STRATEGIES ................................................................5 BIG PICTURE QUESTIONS .................................................................................................................................5 LITTLE PICTURE QUESTIONS...........................................................................................................................6 INFERENCE QUESTIONS ...................................................................................................................................6 VOCABULARY-IN-CONTEXT QUESTIONS .........................................................................................................7 QUANTITATIVE LITERACY/ MATHS LITERACY ................................................................................................22 GENERAL ALGEBRA ........................................................................................................................................ 22 DECIMALS AND FRACTIONS...........................................................................................................................23 LCD AND FACTORS ......................................................................................................................................... 24 RATIOS AND PERCENTAGES ..........................................................................................................................25 REMAINDERS AND PROBABILITY.................................................................................................................. 26 SUBJECT OF THE FORMULA, EQUATIONS, SIMULTANEOUS EQUATIONS .................................................... 26 WORD PROBLEMS .......................................................................................................................................... 28 STRANGE SYMBOLS ........................................................................................................................................ 28 MATHEMATICS EXPONENTS ..........................................................................................................................28 LOGARITHMS .................................................................................................................................................. 31 FACTOR AND REMAINDER THEOREM ........................................................................................................... 33 PATTERNS, SEQUENCES AND SERIES ............................................................................................................ 33 FUNCTIONS AND INEQUALITIES.................................................................................................................... 35 STRAIGHT LINES, CO-ORDINATE GEOMETRY AND CIRCLES ........................................................................ 38 EUCLIDEAN GEOMETRY ................................................................................................................................. 39 GENERAL GEOMETRY AND MENSURATION .................................................................................................. 41 TRIGONOMETRY ............................................................................................................................................. 47 CALCULUS .......................................................................................................................................................52 PROBABILITY .................................................................................................................................................. 53 TRICK QUESTIONS AND WORD PROBLEMS .................................................................................................. 53 SIMULTANEOUS EQUATIONS .........................................................................................................................55 SYMBOLS .........................................................................................................................................................55 SPECIAL TRIANGLES....................................................................................................................................... 55 RATIOS ............................................................................................................................................................56 RATES..............................................................................................................................................................56 REMAINDERS .................................................................................................................................................. 56 AVERAGES.......................................................................................................................................................57 PERCENTAGES ................................................................................................................................................ 57 P a g e 3 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE MULTIPLE AND STRANGE FIGURES............................................................................................................... 57 COMBINATIONS .............................................................................................................................................. 58 PRACTICE TEST 2 ........................................................................................................................................... 59 RATIONAL EQUATIONS AND INEQUALITIES................................................................................................. 59 RADICAL EQUATIONS ..................................................................................................................................... 59 MANIPULATION WITH INTEGER AND RATIONAL EXPONENTS ................................................................... 59 ABSOLUTE VALUE ............................................................................................................................................. 59 FUNCTION NOTATION .................................................................................................................................... 59 CONCEPTS OF DOMAIN AND RANGE ............................................................................................................. 60 FUNCTIONS AS MODELS ................................................................................................................................. 60 LINEAR FUNCTONS – ...................................................................................................................................... 60 EQUATIONS AND GRAPHS ..............................................................................................................................60 QUADRATIC FUNCTIONS – EQUATIONS AND GRAPHS ................................................................................. 60 QUALITATIVE BEHAVIOR OF GRAPHS AND FUNCTIONS .............................................................................. 61 ANALYTICAL GEOMETRY ...............................................................................................................................61 PROPERTIES OF TANGENT LINES .................................................................................................................. 61 SEQUENCES INVOLVING EXPONENTIAL GROWTH .......................................................................................61 TRANSFORMATIONS AND THEIR EFFECT ON GRAPHS OF FUNCTIONS ......................................................62 SETS................................................................................................................................................................. 63 DIRECT AND INVERSE VARIATION ................................................................................................................ 63 DATA INTERPRETATION, SCATTER PLOTS, AND MATRICES ....................................................................... 63 GEOMETRIC NOTATION FOR LENGTH, SEGMENTS, LINES, RAYS, AND CONGRUENCE ...............................63 TRIGONOMETRY ............................................................................................................................................. 63 P a g e 4 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE QUALITATIVE ANALYSIS READING COMPREHENSION QUESTION TYPESAND STRATEGIES When you read passages in the NBT tests, you’re reading for a specific purpose: to be able to correctly answer as many questions as possible. Whatever the passage is about and however long it may be, you can expect the same five basic question categories: 1. Big Picture 2. Little Picture 3. Inference 4. Vocabulary-in-Context 5. Function You can expect slightly more than half of the questions to be Little Picture and inference questions: fewer (approximately 30 percent – 40 percent) will be about Big Picture issues, Function and Vocabulary. BIG PICTURE QUESTIONS Big Picture questions test how well you understand the passage as a whole. They ask about: • The main point or purpose of a passage or individual paragraphs • The author’s overall attitude or tone • The logic underlying the author’s argument • How ideas relate to each other in the passage If you’re stumped on a Big Picture question, even after reading the passage, do the little Picture questions first. They can help you fill in the Big Picture. Big Picture questions will usually be at the end of the question set anyway, so you can often use the question order to help you get a deeper understanding of the whole passage. Big Picture questions may be worded as: • The passage is primarily concerned with . . . • What is the author’s attitude toward . . . • What is the main idea of the passage? • Why does the author mention . . . P a g e 5 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE LITTLE PICTURE QUESTIONS About a third of Critical Reading questions are Little Picture questions that ask about localised bits of information – usually specific facts or details from the passage. These questions often give you a line reference – a clue to where in the passage you’ll find your answer. Beware of answer choices that seem to reasonably answer the question in the stem but that don’t make sense in the context of the passage or that are true but refer to a different section of the text. Little Picture questions test: • Whether you understand significant information that’s stated in the passage • Your ability to locate information within a text • Your ability to differentiate between main ideas and specific details Sometimes the answer to a Little Picture question will be directly in the line or lines that are referenced. Other times, you might need to read a few sentences before or after the referenced line(s) to find the correct answer. When in doubt, use the context (surrounding sentences) to confirm the right choice. Little Picture questions may be worded as • According to the passage . . . • In lines 12 – 16, what does the author say about . . . • How does the author describe . . . INFERENCE QUESTIONS To infer is to draw a conclusion based on reasoning or evidence. For example, if you wake up in the morning and dark grey clouds cover the sky, you may infer that it will rain later and that you may want to take an umbrella to school. Often, writers will use suggestion of inference rather than stating ideas directly. But they will also leave you plenty of clues so you can figure out just what they are trying to convey. Inference clues include word choice (diction), tone and other specific details. For example, say a passage states that a particular idea was perceived as revolutionary. You might infer from the use of the word perceived that the author believes the idea was not truly revolutionary but only perceived (or seen) that way. Thus, inference questions test your ability to use the information in the passage to come to a logical conclusion. The key to inference questions is to stick to the evidence in the text. Most inference questions have pretty strong clues, so avoid any answer choices that seem far-fetched. If you can’t find any evidence in the passage, then it probably isn’t the right answer. Make sure you read inference questions carefully. Some answer choices may be true, but if they can’t be inferred from the passage, then they can’t be the correct answer. Inference questions may be worded as: P a g e 6 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE • • • It can be inferred from the passage that . . . The phrase ______ implies that . . . The author states that ______ . This would indicate which of the following? VOCABULARY-IN-CONTEXT QUESTIONS Vocabulary-in-Context questions ask about the usage of a single word. These questions do not test your ability to define hard words like archipelago and garrulous. Instead, they test your ability to infer the meaning of a word from context. Words tested in NBT questions are usually fairly common words with more than one definition. But that’s the trick! Many of the answer choices will be definitions of the tested word, but only one will work in context. Vocabulary-in-Context questions almost always have a line reference, and you should always use it! Sometimes one of the answer choices will jump out at you. It will be the most common meaning of the word in question – but it’s RARELY right. You can think of this as the obvious choice. Say curious is the word being tested. The obvious choice is inquisitive. But curious also means odd, and that’s more likely to be the answer. Using context to find the answer will help keep you from falling for this kind of trap. But you can also use these obvious choices to your advantage. If you get stuck on a Vocabulary-in-Context question, you can eliminate the obvious choice and guess from the remaining answers. Here’s our strategy for Vocabulary-in-Context questions: • Once you find the tested word in the passage, treat the question like aSentence Completion question. • Pretend the word is a blank in the sentence. • Read a line or two around the imaginary blank if you need to. • Then predict a word for that blank. • Check the answer choices for a word that comes close to your prediction. Vocabulary-in-Context questions may be worded as: • As used in line 8, ______ most nearly means . . . • Which of the following is the best description of this word’s meaning in the context of the passage? • The term ______ most likely refers to . . . P a g e 7 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE FUNCTION QUESTIONS These Why? questions are a little tricky because they require you to take an extra step Beyond the What? of the passage. To answer these questions affectively, you must put yourself in the author’s place. A Function question will ask you: • Why include this detail? • Why include this word? • Why include this sentence? • Why include this quote? • Why include this paragraph? Your job is to look back in the passage using the line references or other hints the question stem gives you. There you will discover clues to the answer. Most often, you have to read around any lines they give you to find the answer. Once you have seriously skimmed the passage, here’s how to attack the questions: Step 1. Read the question stem. Step 2. Locate the material you need. Step 3. Predict the answer. Step 4. Select the best answer choice. Question 1 refers to the following passage. Recently, at my grandmother’s eightieth birthday party, my family looked at old photographs. In one of them I saw a scared little boy holding tightly to his mother’s skirt, and I scarcely recognized myself. My foremost memory of that (5) time is simply being cold – the mild Vietnamese winters that I had known couldn’t prepare me for the bitter winds of the American Midwest. The cold seemed emblematic of everything I hated about my new country – we had no friends, no extended family, and we all lived together in a two-room apart(10) ment. My mother, ever shrewd, remarked that selling heat in such a cold place would surely bring fortune, and she was right. My parents now own a successful heating supply company. 1. The author’s attitude towards the “scared little boy” mentioned in line 3, indicates that the author (A) is unsure that the photograph is actually of his family (B) believes that the boy is likely overly dependent on his mother P a g e 8 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE (C) (D) (E) feels he has changed considerably since childhood regards his mother’s strategy to sell heating supplies as clever regrets his family’s move to the United States Let’s take a look at your answer choices. (A) is too literal – the author is speaking figuratively when he says he scarcely recognizes the boy. (B) goes too far in making an inference. Although the boy is sticking close to his mother in the picture, there’s no evidence that the author thinks this is a bad thing. (C) is a great match for your prediction and is the correct answer. (D) might be a true statement, but it comes later in the passage. It has nothing to do with the author’s attitude toward the boy in the picture. (E) like (B), is too great a leap and can’t safely be inferred from the information in the passage. PRACTICE TEST Question 1 – 2 refer to the following passage Recently, at my grandmother’s eightieth birthday party, my family looked at old photographs. In one of them I saw a scared little boy holding tightly to his mother’s skirt, and I scarcely recognized myself. My foremost memory of that (5) time is simply being cold – the mild Vietnamese winters that I had known couldn’t prepare me for the bitter winds of theAmerican Midwest. The cold seemed emblematic of everything I hated about my new country – we had no friends, no extended family, and we all lived together in a (10) two-room apartment. My mother, ever shrewd, remarked that selling heat insuch a cold place would surely bring fortune, and she was right.My parents now own a successful heating supply company. 1. In line 5, the author mentions “the mild Vietnamese winters” in order to (A) explain his grandmother’s childhood in Vietnam (B) recall his past growing up in Vietnam (C) detail the weather conditions in his home country (D) describe how much he despises the cold (E) provide contrast to how cold the author felt in the new country P a g e 9 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 2. Lines 10-13 (“My mother . . . heating supply company”) suggest that the author’s mother regarded the cold of the American Midwest as (A) more drastic than that of Vietnam (B) an opportunity for economic success (C) an obstacle to familial happiness (D) symbolic of other challenges and problems (E) unimportant to the family’s future Questions 3-4 refer to the following passage. Many mammals instinctively raise their fur when they are cold – a reaction produced by tiny muscles just under the skin which surround hair follicles. When the muscles contract the hairs stand up, creating an increased air (5) space under the fur. The air space provides more effective insulation for the mammal’s body, thus allowing it to retain more heat for longer periods of time. Some animals also raise their fur when they are challenged by predators or even other members of their species. The raised fur (10) makes the animal appeal slightly bigger, and ideally, more powerful. Interestingly, though devoid of fur, humans still retain this instinct. So, the next time a horror movie gives you “goose bumps,” remember that your skin is following a deep-seated mammalian impulse now rendered obsolete. 3. The “increased air space under the fur” mentioned in lines 4-5 serves primarily to (A) combat cold (B) intimidate other animals (C) render goose bumps obsolete (D) cool overheated predators (E) make mammals more powerful 4. Based on the passage, the author would most likely describe goose bumps on humans as (A) an unnecessary and unexplained phenomenon (B) a harmful but necessary measure (C) an amusing but dangerous feature (D) a useless but interesting remnant (E) a powerful but infrequent occurrence P a g e 10 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE Questions 5-6 refer to the following passage: Elizabeth Barrett Browning, a feminist writer of the Victorian Era, used her poetry and prose to take on a wide range of issues facing her society, including “the woman question.” In her long poem Aurora Leigh, she explores this question as she portrays both the growth of the artist and the growth of the woman within. Aurora Leigh is (5) not a traditional Victorian woman – she is well educated and self-sufficient. In the poem, Browning argues that the limitation placed on woman in contrast to the freedom of men enjoy should incite women to rise up and effect a change in their circumstances. Browning’s writing, including Aurora Leigh, helped to pave the way for major social change in women’s lives. 5. It can be inferred from the passage that the author believes the traditional Victorian woman (A) wrote poetry (B) was portrayed accurately in Aurora Leigh (C) fought for social change (D) was not well educated (E) had a public role in society 6. As used in line 7 “effect” most nearly means (A) imitate (B) result (C) cause (D) disturb (E) prevent Questions 7-8 refer to the following passage. Each passing evening brings more frustration. Tonight I spent an hour in front of the typewriter staring at the silent keys, listening to the girl upstairs play the piano and sing. I’d never noticed her ability before; she is remarkable. It seems everything she plays is of her own spontaneous creation, an absolute movement of feeling. (5) Her music is a painting, the lines so intense and colouring that it manages to exist above the realm of the material, impressing a desolate image of the pianist upon my mind. But even the beauty of this pure work of art failed to inspire me and after she stopped I was again without refuge. 7. In line 2 the phrase “silent keys” implies that the narrator (A) can’t play the piano (B) is suffering from writer’s block (C) is tone deaf (D) is searching for clues (E) is annoyed by the girl upstairs P a g e 11 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 8. The narrator uses the description of the girl’s playing in lines 3-4 (“It seems . . . feeling”) mainly to (A) contrast it with his inability to write (B) illustrate her talents as a musician (C) compare it with painting (D) criticize her lack of skill (E) indicate his inferiority as an artist Questions 9-10 refer to the following passage. Bear Mountain State Park opened in 1916 and rapidly became a popular weekend destination for many New Yorkers looking for an escape from the city grind. The ensuing unnaturally high volume of visitors to the area caused an upsurge in traffic, and it was soon apparent that the ferry services used to cross the Hudson were insufficient. In (5) 1922, the New York State Legislature introduced a bill that authorized a group of private Investors led by Mary Harriman to build a bridge across the river. The group, known as the Bear Mountain Hudson Bridge Company, was allotted thirty years to construct and maintain the bridge, after which the span would be handed over to New York State. 9. In context, “volume” (line 3) most closely means (A) loudness (B) pollution (C) resentment (D) capacity (E) quantity 10. According to the passage, which is true about the bridge? I. It was originally constructed by New York State. II. It opened to the public in 1916 III. It was necessitated by inadequate ferry services (A) (B) (C) (D) (E) Statement II Statement III Statements I and II Statements I and III Statements II and III Questions 11-12 refer to the following passage. Like the writers of the Beat Generation almost a half-century before, many of the original grunge musicians who helped give birth to a movement were horrified at the final result of their efforts. Grunge music and culture was spawned in Seattle in the late 1980s as an underground revolt against the shallow values of the time. But with (5) Nirvana’s 1991 release of Nevermind and the successive popularity of other Seattle bands like Pearl Jam and Sound Garden, the once-countercultural grunge movement skyrocketed into popular consciousness. Many aspects of the culture that were P a g e 12 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE originally forms of rebellion, such as the hairstyles and fashions worn by grunge musicians, found their way into the most mainstream of places. 11. In line 1, the author invokes the Beat Generation in order to (A) detail an earlier movement in music (B) introduce the topic by illustrating a similarity (C) imply the insignificance of grunge (D) recall an important time in American cultural history (E) emphasize grunge’s influence upon today’s music 12. As used in line 2, “movement” most closely means (A) an organized attempt at change (B) a specific manner of moving (C) the changing of location or position (D) a rhythmic progression or tempo (E) a mainstream belief Questions 13-14 refer to the following passage Bovine spongiform encephalopathy (BSE) is a fatal, transmissible, neurological disorder found in cattle that slowly attacks a cow’s brain cells, forming what resembles sponge-like holes in the brain. As the disease progresses, the cow begins to behave abnormally, hence BSE’s more common name, “Mad Cow Disease.” (5) (10) On December 23, 2003, the first case of BSE in the U.S. was detected in a cow from Washington State. The ensuing national hysteria was largely unfounded; years earlier, in response to the previous epidemics abroad, the USFDA had implemented preventative measures to contain an outbreak of the disease before it could spread. These measures were in place for a good reason: there is a causal link between eating BSE-infected meat and the development of a fatal human brain disorder known as new variant Creutzfeldt-Jakob Disease (nvCJD). 13. The first paragraph mostly serves to (A) explain the origin of the term “Mad Cow Disease” (B) introduce background information of BSE (C) warn of BSE’s transmissibility to humans (D) dissuade people from eating meat (E) provide in-depth description of BSE’s different stages P a g e 13 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 14. Which of the following best describes the “national hysteria” in line 6 of the passage? (A) totally justified (B) necessary for USFDA policy change (C) rooted in misinformation about BSE’s (D) completely inexcusable (E) understandable, but unnecessary Question 15-16 refer to the following passages. Ann’s footsteps crunching upon the fallen leaves are amplified by the pre-dusk serenity that is quickly setting upon the forest. The path before her is quickly dissolving into the growing shadows, yet the fear that would normally be creeping into her chest is absent. Somewhere secretly inside she finds the prospect of disappearing (5) into the woods exhilarating. Liberated, all her daily burdens would go as the daylight goes, only the empty night, spattered with benevolent stars. But as the trail opens onto her backyard, Ann is surprised to find herself breaking into a trot, eager to return to the familiar warmth of her home. 15. Ann’s absence of fear (lines 3-4) suggests that she (A) is brave in the face of danger (B) doesn’t realize she is lost (C) is an apathetic person (D) longs for a change in her life (E) knows exactly where she is 16. In line 6, “the empty night” is symbolic of (A) everyday life (B) a lack of responsibility (C) being lost (D) loneliness (E) death Question 17-20 refer to the following passages. Passage 1 Acid rain clouds, formed by the release of gases from burning fossil fuels, join with existing weather patterns and eventually pour down toxic, highly acidic water droplets that can cause significant and often irreversible environmental damage. However, nuclear power and renewable energy technologies – those that take advantage of continuously available (5) resources such as the sea, sun and various biofuels – can generate electricity without giving off the gases that contribute to acid rain, and there are proven ways to effectively sequester the harmful gases generated by fossil fuel plants. Yet as acid rain continues to seriously damage countless waterways, forests, crops, and even to erode buildings, senselessly little is being done to take advantage of these new technologies. P a g e 14 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE Passage 2 (10) While the world’s most-developed nations have the luxury of squabbling over the political and environmental questions raised by those who actually have energy choices, the developing world usually has only one resource to turn to: coal. One of the cheapest and most plentiful sources of energy in the world, coal is used to generate nearly 40 percent of the world’s electricity. But when burned, coal releases large amounts of carbon dioxide - a gas that, when (15) present in excess, can cause a whole host of serious respiratory diseases. So while wealthy nations can complain about global warming and acid rain, the rest of the world must struggle to cope with the immediate human damage caused by the only natural resource they can afford. 17. In passage 1, the author’s attitude toward the continuing presence of acid rain is best described as (A) astonishment that acid rain remains a problem in the developed world (B) frustration that the use of cleaner technologies is not more widespread (C) irritation that nothing is being done to curb the creation of acid rain (D) impatience towards plants that refuse to adopt experimental technologies (E) scepticism that irreversible damage is really being done to the environment 18. In passage 2, the author characterizes “the world’s most-developed nations” (line 10) as which of the following? (A) Insensitive (B) Responsible (C) Privileged (D) Reckless (E) Impoverished 19. How would the author of passage 2 most likely respond to the assertion in passage 1 that “senselessly little” (line 9) is being done to take advantage of new and cleaner energy-generation technologies? (A) Wealthier nations have a responsibility to create opportunities for those less fortunate. (B) Most countries would adopt these technologies if they were affordable. (C) The environmental impact of an energy source is just as important as the cost of energy. (D) Environmental damage is less significant than damage to humans. (E) Not all countries can afford these technologies. P a g e 15 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 20. The authors of both passages agree that (A) clean energy technologies are more expensive than conventional methods (B) acid rain is a problem inevitably created by energy creation (C) the burning of fossil fuels can release harmful gases (D) the environmental debate over energy generation is only intensifying (E) the human and environmental impacts of energy generation are equally important Funeral Blues Wystan Hugh Auden Stop all the clocks, cut off the telephone, Prevent the dog from barking with a juicy bone. Silence the pianos and with muffled drum Bring out the coffin, let the mourners come. Let aeroplanes circle moaning overhead Scribbling on the sky the message: He is Dead, Put white crépe bows round the necks of the public doves, Let the traffic policemen wear black cotton gloves. He was my North, my South, my East and West, My working week and my Sunday rest, My noon, my midnight, my talk, my song, I thought that love would last forever: I was wrong The stars are not wanted now, put out every one; Pack up the moon and dismantle the sun; Pour away the ocean and sweep up the wood. For nothing now can ever come to any good. P a g e 16 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE Ontvlugting Ingrid Jonker Uit hierdie Valkenburg het ek ontvlug en dink my nou in Gordonsbaai terug: Ek speel met paddavissies in ’n stroom en kerf swastikas aan ’n rooikransboom Ek is die hond wat op die strande draf En dom-allenig teen die aandwind blaf Ek is die seemeeu wat verhongerd daal En dooie nagte opdis vir ’n maal Die god wat jou geskep het uit die wind sodat my smart in jou volmaaktheid vind: My lyk lê uitgespoel in wier en gras op al die plekke waar ons eenmaal was. P a g e 17 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE The More Loving One Wystan Hugh Auden Looking up at the stars, I know quite well That, for all they care, I can go to hell, But on earth indifference is the least We have to dread from man or beast. How should we like it were stars to burn With a passion for us we could not return? If equal affection cannot be, Let the more loving one be me. Admirer as I think I am Of stars that do not give a damn, I cannot, now I see them, say I missed one terribly all day. Were all stars to disappear or die, I should learn to look at an empty sky And feel its total dark sublime, Though this might take me a little time. P a g e 18 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE Uittreksel uit Convivium en die digbundel Mede-wete Antjie Krog 2. Maar staafspirale bestaan sê jy die lieflike vere-rige slanke spiraalarms van ons sterrestelsel bestaan in ‘n dromende ballet sê jy van waas en wentelbaan en die stadig-polsende lewensloop van sterre suurstof en kwasars newelagtige baarmoeders en ontsaglike lig aan die buitewyke van die heelal sê jy die melkweg neurie daar’s rustig silwersuiwerende wentelbane die beminning van mane getye liglyne en ewigdurende ewewig dit alles bestaan sê jy: is dit nie juis die sterre as ‘n oordaad priemsels op ‘n stil someraand wat ons in wentelbane van uitreiking hou nie? elke keer as ons in oorgawe na mekaar toe draai doen ons dit onder ‘n druisende baldakyn van sterre 3. die univers word anders ontkurk sê jy as bloot deur oorlewingsgeweld kyk hoe halshemeld vanoggend die uithaal van lig oor die Mooiberge die liriese teloorgang die oorskulp-hartbreekliturgie van die herfsmens hurk verwonderd hierin want welgeluksalig is ons dat hierdie smal benerige erfsterflike liggaam soveel oorvloed kan stemvurk P a g e 19 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE VOCABULARY TEST 1. Hans found the movie stubs lying on the counter to be ____________ evidence that his friends had gone to the cinema without him; it was unquestionable that they had seen “Spider-Man”. (A) immaterial (B) potential (C) indisputable (D) incriminating (E) nominal 2. Despite his apparent ____________ lifestyle, the old man was known to drink to excess when visited by friends. (A) temperate (B) laconic (C) aesthetic (D) duplicitous (E) voluble 3. The waiter performs his job with ____________ and hopes that, if he continues to work ____________ he will eventually be promoted to maitre’d. (A) sagacity . . . unscrupulously (B) leniency . . . decorously (C) nonchalance . . . tenaciously (D acrimony . . .cheerfully (E) ardor . . . assiduously 4. Though the film ostensibly deals with the theme of ____________ , the director seems to have been more interested in its absence – in isolation and the longing for connection (A) reliance (B) fraternity (C) socialism (D) privation (E) levity 5. Everything the candidate said publicly was ____________ ; he manipulated the media in order to present the image he wanted. (A) incendiary (B) calculated (C) facetious (D) scrupulous (E) impromptu P a g e 20 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 6. Even though we are supposed to be more evolved than animals, the human tendency toward ____________ and egocentrism, shows that people sometimes can carry a narrow view of the world. (A) anthropocentrism (B) humanity (C) irrationality (D) temerity (E) serendipity 7. Many biologists are critical of the film’s ____________ premise that dinosaurs might one day return. (A) scientific (B) tacit (C) speculative (D) unwitting (E) ambiguous 8. Aristotle espoused a ____________ biological model in which all extant species are unchanging and eternal and no new species ever came into existence. (A) paradoxical (B) morbid (C) static (D) holistic (E) homogeneous 9. Some critics believe that the ____________ of modern art came with dadaism, while others insist that the movement was a ____________ . (A) zenith . . . sham (B) pinnacle . . . triumph (C) decline . . . disaster (D) acceptance . . . success (E) originality . . . fiasco 10. The writings of the philosopher Descartes are ____________ ; many readers have difficulty following his complex, intricately woven arguments. (A) generic (B) trenchant (C) reflective (D) elongated (E) abstruse P a g e 21 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE QUANTITATIVE LITERACY/ MATHS LITERACY GENERAL ALGEBRA 1. How many seconds are there in a day? (A) 5184000 2. ,-.÷0 12(42,,) 6 4. (D) π > π > π > π (E) π > π > π > π (E) 14400 8 (D) 70 π (E) ππ (C) π > π > π > π If π = 4√3 , π = 5√2 and π = 3√5 , which of the following is true? (B) π > π > π (C) π > π > π (D) π > π > π (E) π > π > π If 3 ≤ π ≤ 10 and 12 ≤ π ≤ 21 then the difference between the largest and smallest possible I values of J is 74 (B) 0 ,4 (C) 1M ,4 (D) ,7 ,4 (E) 68 In how many ways can 50 be expressed as the sum of two prime numbers? (A) 1 (B) 2 (C) 3 (D) π (E) 5 When the numbers below are arranged in increasing order, which number is in the middle? (A) 5√6 8. 8 (C) 90 (B) π > π > π > π ππ 7. 8 (B) 70 (A) π > π > π > π (A) ππ 6. (D) πππππ If π = 75, π = 36√5 , π = 72 and π = 32√5 , which of the following is true? (A) π > π > π 5. (C) 28800 is equal to (A) 70 3. (B) 1440 (B) 7√3 (C) 5√5 (D) 3√7 (E) π√π If π and π are composite numbers such that π + π = 31, what is the biggest possible value of ππ? (A) 110 (B) 160 (C)180 (D) πππ (E) 270 P a g e 22 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 9. A tap leaks at a rate of one drop per second. A drop contains one-fifth of millilitre of water. What is the total loss (to the nearest litre) from the dripping tap in one week? (A) 100 (B) 106 (C) 115 (D) πππ (E) 137 DECIMALS AND FRACTIONS , 10. When 8, is written as a recurring decimal, what is the hundredth digit after the decimal point? (A) 0 (B) 2 (C) 3 (D) 4 (E) 9 11. If π = 0.432432432432 … and π = 0.45454545 … are recurring decimals as indicated, then π + π is equal to .04 (A) 8M0 πππ .9. (B) πππ (C) 8M4 .90 (E) 8,. (D) 8,, .91 12. Which of the following numbers is the smallest? . (A) 0 13. T T 2 U V T T 2 V W π (C) . 7 (D) 6 0 (E) 8 π (C) . 0 (D) 6 ,, (E) 80 1 (E) ,. (B) π − 1 (A) ,7 T T U V T T V W . is equal to: (B) π 6 14. Which of the following fractions is the biggest? 7 (A) . π 0 (B) π (C) 1 , 4 (D) ,M , 15. If π − π = 3 and ππ = 7 , then Y − Z is equal to: , (A) . π (B) − π 1 (C) . , (D) − . , (E) 1 16. Which of the following CANNOT be a person’s height? (A) (B) (C) (D) (2000 × 102. )m 0,0019 km 180 cm 17950 mm P a g e 23 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE LCD AND FACTORS 17. , , 7J-, , + (7J-,)(8J-,) + (8J-,)(9J-,)is equal to: 0 7 (A) (7J-,)(9J-,) (B) 8J-, 8 π (C) (7J-,)(8J-,) (D) ππ-π . (E) (7J-,)(8J-,)(9J-,) 18. Factorise (π₯ 7 − 5π₯)7 − 36 (A) (π − π)(π − π)(π − π)(π + π) (B) (π₯ + 3)(π₯ − 2)(π₯ + 6)(π₯ + 1) (C) (π₯ − 3)(π₯ + 2)(π₯ − 6)(π₯ − 1) (D) (π₯ − 3)(π₯ + 2)(π₯ + 6)(π₯ + 1) (E) (π₯ + 3)(π₯ − 2)(π₯ − 6)(π₯ − 1) 19. 7 . d-, 8 − d-7 + d27 is equal to: πππ -πππ-π (A) ππ -ππ 2ππ2π 20. . .d U 2,0d29 (D) d V-d U28d28 . (E) d28 7 d-, 22. .d U2,0d-9 (C) d V -d U -8d28 − d-,is equal to: d27 π-π (A) d U 2d27 21. .d U-,0d29 (B) d V 2d U28d28 ed U2,fed V2,f (d2,)U (B) ππ 2π2π 0d2, (C) d U -d27 d27 (E) d U-d-7 is equal to: (A) π₯ . + π₯ 7 + π₯ + 1 (B) ππ + πππ + ππ + π (D) π₯ . − 2π₯ 7 − 2π₯ + 1 (E) π₯ . − 2π₯ 7 + 2π₯ − 1 d-, 0d2, (D) d U2d27 (C) π₯ . − π₯ 7 + π₯ − 1 d-7 d U -.d-7 + d U -0d-9 is equal to: 7d-. (A) 7d U-6d-6 7d-. (B) d W -,0d U-,7 ππ-π (C) (π-π)(π-π) .d-7 (D) (d-,)(d-7)(d-.) 7d-. (E) d V-0d U -4d-9 P a g e 24 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE RATIOS, PERCENTAGES AND AVERAGES 23. Two positive numbers are such that their sum, difference and product are in the ratio 6 βΆ 4 βΆ 15. The smaller of the two numbers is: (A) 15 (B) 9 (C) 4 (D) π (C) 60 (D) 61 24. 28% of 75 plus 45% of 80 is equal to: (A) 55 (B) ππ (E) 65 25. Thabo buys π oranges. He squeezes π% of them to make fresh orange juice. How many oranges are left? kl (A) ,MM (B) ππππ2ππ (C) πππ ,MMk2l ,MM k2l (D) ,MM (E) ,MMl2kl ,MM 26. There are 200 goats and 50 sheep on a farm and a set amount of food for them. One goat eats twice as much as one sheep. How many more sheep can he have if he only farms with sheep? (A) 100 (B) 150 (C) 250 (D) 400 (E) 450 27. There are 5000 trees in a forest. 2000 are pines, the rest are wattles. How many times more wattles than pines are there? 0 . (A) . (B) 0 7 π (C) . (D) π , (E) . J 28. If 75% of n is equal to k % of 25, what is p ? (A) (B) (C) (D) 8 . 7 . , . 7 0 29. If the ratio of red, green and blue balls is 1: g: 5 respectively and there are 150 blue balls out of a total of 240, what is the value of g? (A) 2 (B) 3 (C) 4 (D) 5 P a g e 25 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 30. The average mark for a class of boys and girls out of 100 is 55. If the average mark for “b” boys is 52 and the average mark for “g” girls is 61, then which of the following statements is true? (A) b = 2g (B) b = 3g (C) b = 4g (D) b = 5g REMAINDERS AND PROBABILITY 31. A five-digit number 1234π is dvisible by 9. What is the remainder when it is divided by 7? (A) π (B) 1 (C) 2 (D) 4 (E) 5 (D) πππ πππ (E) 5 555 555 32. Which one of the following numbers is divisible by 7? (A) 11 (B) 2222 (C) 33 333 SUBJECT OF THE FORMULA, EQUATIONS, SIMULTANEOUS EQUATIONS , . 33. If d-. = 4 then d-7 is equal to: (A) 1 d (B) -2 (C) 3 (D) -4 (E) 5 . 34. If r = 8 then the incorrect expression in the following is: d-r 1 r (A) r = 8 (B) r2d = 4 35. If 1 - 1 = 1 - s u v r then r is equal to: (A) ( s -1) (v - u) (B) uv(s - 1) u -v , (C) d-7r d ,, = . π2π π (D) π = π (C) s - 1 u -v (D) uv ( s - 1)( u - v ) (C) 6 (D) 4 , 36. If π₯ + d = 3 , then π₯ 7 + d U is equal to (A) 9 (B) π 67 (E) 3√3 P a g e 26 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE , , , 37. If d + r = 7 and π₯π¦ = 6 , what is the value of π₯ + π¦ ? (A) 1 (B) 2 (C) π (D) 4 (E) 6 38. If π + π = 22 , π + π = 25 and π + π = 23 , then ππ + ππ + ππ is equal to (A) 387 (B) πππ (C) 491 (D) 510 (E) 674 (D) 49 (E) 55 39. If π + π = 7 and ππ = 4 , what is the value of π7 + π7 ? (A) 28 (B) 40 (C) ππ 40. If 2π − 3π = 4 and 7π + 2π = 9, then π + π is equal to . (A) 1 (B) π 0 (C) − 7 1 (D) 8 (E) −3 (D) 20 (E) 27 41. If π₯ + π¦ = 12 and π₯ . + π¦ . = 1188 then the value of π₯π¦ is (A) 11 (B)ππ (C) 18 42. If π₯π¦ = 7 and π₯ + π¦ = 3 what is the value of (π₯ + 1)(π¦ + 1) ? (A) 10 (B)ππ (C) 12 (D) 13 (E) 14 43. If π₯ = 2 + 3u and π¦ = 2 + 32u then π¦ expressed as a function of π₯ is: . .d20 (A) d27 (B) d27 ππ2π 7d2, (C) π2π (D) d27 (E) −π₯ (C) 5 (D) 2√5 − 2 (E) 25 − 2√5 (C) π (D) 6 (E) 7 44. If π₯ = √5 − 1 then π₯ 7 − 1 is equal to (A) √3 , (B)π − π√π , , 45. If J + J(J2,) = 8 , then π is equal to (A) 3 (B) 4 46. If π − π − π = 2 , π − π − π = −3 and π − π − π = 5 , then π + π + π is (A) −1 (B) −2 (C) −3 (D) −π (E) −5 P a g e 27 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE WORD PROBLEMS 47. A bucket weighs πΉ ππ when full of water and π» ππ when it is half full. What is the weight of the bucket (in kilograms) when it is empty? , (A) πΉ − π» (B) 7 (πΉ + π») , (E) ππ― − π (D) 1 ,0 (E) 78 (C) ππ (D) 9 (E) 12 (C) 2J2, − 1 (D) 27J (E) 7 (D) 7 (πΉ − π») (C) πΉ − 2π» STRANGE SYMBOLS , 48. Ifπ β π means k-l then 2β (3 β 4) is equal to , (A) 4 π (B) 24 (C) ππ , 49. If π ∗ π = π + ππ then the value of 3 ∗ (3 ∗ 2) is (A) 24 (B) 18 MATHEMATICS EXPONENTS 50. 2J − 2J2, is equal to: (A) ππ2π (B) 2 , 51. (ππ)2, (π2, + π2, )2, is equal to: 52. (A) π 2, + π 2, (B) ππ(π2, + π 2, ) (D) ππ(π + π)2, (E) (ππ)2, (π + π) V (C) (π + π)2π W √4 × √8 is equal to: (A) √2 • (B) 2√12 • TU ππ (C) √32 (D) √32 (E) π √ππ (A) πππ ππ √πππ + πππ (B) √117π,7 π.M (C) 9π8 π,7 √9π8 + 6π9 (D) €117(π,7 + π.M ) (E) 9π7 π4 + 6π8 π9 53. √81π8 π,6 + 36π6 π,7 is equal to: P a g e 28 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE T 54. If [(27J + 1)(27J − 1) + 1]W = 256 then π is equal to: (A) 2 (B) 4 (C) 6 (D) π (E) 10 55. (π2, + π2, )2, is equal to: , (A) π + π , (B) YU + ZU Y Z (C) Z + Y ππ (D) π-π (E) π7 + π7 56. If π and π are positive integers such that 6I + 2I-J + 3I + 2J = 85, what is the value of π7 + ππ + π7 ? (A) ππ (B) 18 (C) 20 (D) 17 (E) 21 (D) ππππ (E) 6029 57. If 3J + 3J + 3J = 97M,M then π is equal to: (A) 2010 (B) 2007 58. One solution to the equation: (C) 2004 √π₯ + √π₯ + √π₯ + √π₯ = √π₯ × √π₯ × √π₯ × √π₯ is: W (A) 1 (B) √16 π (C) √ππ (D) 4 59. Given that 2 x +1 + 2 x = 3 y + 2 - 3 y and that x and y are integers, calculate the value of x + y: (A) 6 60. The expression (B) 5 (D) 3 ( x + y ) ( x-1 + y -1 ) is the same as: -1 (B) 12 + 12 x y (A) 1 xy (2.)(ƒT) 61. The value of (−8) (A) 24 (C) 4 (C) x 2 + y 2 (D) xy , (D) 2 (E) −2 (D) 3 (E) 2 is: π (B) − π (C) 78 62. If 2I 3J = 64 × 68 , what is the value of π − π? (A) π (B) 5 (C) 4 P a g e 29 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 63. , √1-√0 (A) 64. is equal to: , , √,7 0√.2.√0 √02√. , (B) .√7 (C) (B) −1 (C)√41 √1 , + √0 π √,7 (D) π e√π − √πf (E) (D) 49 (E)√ππ √.0 is equal to: (A) 0 „ 65. €π,88J is equal to: (A) π,7J V (B) π,7J W (C) π17J W (D) ππππ π (E) π17J V 66. √64π,9 π,7 + 100π6 π,9 is equal to: (A) 8π6 π9 + 10π8 π,9 (B) πππ ππ √ππππ + ππππ (C) 2π6 π,7 √16π6 + 25π8 (D) 8π8 π. + 10π8 π6 (E) 16π6 π,7 √4π6 + 5π8 67. (π + π)2, (π2, + π 2, ) is equal to: (A) (π + π)7 7 (B) (π + π)2, (C) (ππ)2π (D) π7 + π7 (E) ππ 8 68. e√3 − √2f e√3 + √2f is equal to: (A) π + π√π (B) 7 − 3√6 (D) 2√3 + 3√2 (E) 1 + 2√2 + 3√3 (C) 4 + 3√6 U 69. €168d is equal to: (A) 47d 70. , Y ƒT -Z ƒT U (B) 47d (C) 167d π (D) ππππ (E) 168d is equal to: (A) π + π , (B) Y-Z Y-Z (C) YZ ππ (D) π-π (E) −π − π P a g e 30 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 71. √100π8 π,9 + 36π6 π,7 is equal to: (A) πππ ππ √πππ + ππππ (B) 10π7 π6 + 6π8 π9 (C) 2π8 π9 (5π7 + 3π7 ) (D) 10π7 π8 + 6π8 π9 (E) 2π7 π9 (3π7 + 5π7 ) 72. 72√. 7√.2. is equal to: (A) √3 (B) 2 + √3 π (C) 3 − √3 (D) (C) 2€2√6 (D) 3 (E) √3 − 1 √π 73. €5 + 2√6 − €5 − 2√6 is equal to: (A) π√π 74. (B) √10 (E) 2√6 V €2771d 71 (A) 27.d … (B) 27.d V (C) 2771d … ππ (D) ππππ (E) 27.d U• 75. Which of the following statements is true? 76. (A) 106 < 5,7 < 278 (B) πππ < πππ < πππ (D) 5,7 < 106 < 278 (E) 278 < 5,7 < 106 If 2.3a = 54 and 5.2b = 80 what is the value of a + b? (A) 1 77. (C) 106 < 278 < 5,7 (B) 4 (C) 5 (D) 6 (E) 7 (D) 39 (E) 75 7 What is the value of e√27 − √12f ? (A) 3 (B) 13 (C) 15 LOGARITHMS 78. πππ7 4 × πππ4 3 is equal to: (A) πππ,, 7 (B) πππππ ππ (C) πππ,, 12 (D) πππ,, 9 (E) πππ,, 8 P a g e 31 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 79. (π; π)is a solution to the simultaneous equations: πππ7 π₯ = πππ8(π₯ + 12)and π¦ − 2π₯ = 2 The value of πππ(π¦) is: (A) 4 (B) 10 (C) −1 (D) π 80. The solution of the inequality log 7 π₯ + log 7 (π₯ − 3) < 2 is: (A) −π < π₯ < 4 (B) 3 < π₯ < 4 (D) 4 < π₯ < 6 (E) 1 < π₯ < 5 (C) 0 < π₯ < 3 81. If 2Y = 5 and 5Z = 10 then ππ is equal to: (A) π₯π¨π π ππ (B) 5 (C) 10 (D) log 0 20 (E) 25 82. log 0 500 is equal to: (A) π + π π₯π¨π π π (B) 5 + log 0 10 (D) log 0 200 + log0 300 (E) 2 log 0 250 (C) 10 + log0 50 83. πππ. 9 × πππ8 2is equal to: (A) log 1 18 (B) log,7 7 (C) log 1 11 (D) log,7 18 (E) π₯π¨π π π 84. log π7 − ππππ7 is equal to: (A) log(π7 − π7 ) (B) 2log (π − π) π (D) π π₯π¨π “π” (C) (ππππ − ππππ)(ππππ + ππππ) (E) 2log (π + π) 85. log 7 8 × log 6 64 is equal to: (A) 2 (B) 4 (C) 5 (D) π (E) 8 . (E) . 86. If log,M 2 = π then log,M 500 is equal to: (A) π − π (B) 3 + π (C) 3π (D) Y Y P a g e 32 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE FACTOR AND REMAINDER THEOREM 87. What is the remainder when 3π₯ . + π₯ 7 + 8π₯ − 7 is divided by π₯ 7 + π₯ + 2? (A) ππ − π (B) 2π₯ + 1 (C) 3π₯ − 2 (D) π₯ − 4 (E) 5 88. What is the remainder when π₯ 8 + 4π₯ . − 3π₯ 7 − 6 is divided by π₯ 8 − 1 ? (A) 4π₯ . + 12π₯ 7 − 3 (B) 5π₯ . + 3π₯ 7 + 5 (D) πππ − πππ − π (E) π₯ . + 3π₯ 7 − 1 (C) 3π₯ . + 4π₯ 7 − 1 89. Which of the following is not a factor of 6π₯ 8 − 23π₯ . + 10π₯ 7 + 29π₯ − 10 ? (A) 3π₯ − 1 (B) π₯ − 2 (C) π₯ + 1 (D) ππ − π (E) 2π₯ − 5 90. When 42π₯ . + 31π₯ 7 − 56π₯ + 15 is divided by (2π₯ − 1)(5 + 3π₯) the quotient is: (A) 2π₯ − 3 (B) 3π₯ − 7 (C) 6π₯ + 5 (D) 14π₯ + 1 (E) ππ − π 91. If ππ₯ 7 − ππ₯ − 6 is divisible by both π₯ + 1 and π₯ + π, find the value of ππ7 + ππ + 6 (A) ππ (B) 15 (C) 18 (D) 21 (E) 20 92. The remainder when 2π₯ 8 + 2π₯ . − π₯ 7 − 15π₯ + 8 is divided by 2π₯ 7 − 4π₯ + 1 is (A) 4π₯ + 5 (B) 3π₯ − 1 (C) ππ + π (D) −π₯ + 7 (E) π₯ + 4 (D) π (E) 1 93. The remainder when 16π7 + 3 is divided by 4π + 2 is (A) 0 (B) −7 (C)−1 PATTERNS, SEQUENCES AND SERIES , 94. The sum of π terms of an arithmetic series is 7 π(3π + 7). The tenth term of the series is (A) 32 (B) 47 (C) 29 (D) 38 (E) 51 P a g e 33 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 95. Find the sum of all integers between 100 and 200 which leave a remainder of 3 when divided by 10. (A) 1684 (B) 1522 (C) 1376 (D) 1480 (E) 1296 96. The sides of a right-angled triangle are in geometric progression and the shortest side has length 2. What is the length of the hypotenuse? (A) √11 (B) π + √π (C) 2√3 97. The sum of the first p odd numbers is: p2 + p (A) p 3 (B) (C) p 2 2 (D) √10 (D) (E) 3√2 − 1 p2 - p 2 , 98. The sum of the first n terms of the sequence is given as: πJ = π7 (π + 1)7 . Determine the 8 third term of the sequence. (A) 36 (B) ππ (C)18 (D) 9 9 99. What is the sum of the first hundred digits of the decimal expansion of 1 ? (A) 398 lU (B) πππ lV (C) 560 (D) 583 (E) 601 lW 100. π + 7 + 8 + 6 + β― For which value of π does the series converge? (A) −1 < π < 1 (D) −2 ≤ π ≤ 2 (B) −1 ≤ π ≤ 1 , , (E) − 7 < π < 7 (C) −π < π < 2 101. Evaluate: 7J ∑,M J˜,(−1) (A) 1 (B)−1 (C) ππ (D) −10 (E) 0 102. The sum of 9 consecutive odd numbers is 189. What is the sum of the smallest value and the largest value? (A) 13 (B)16 (C) 29 (D) ππ (E) 45 P a g e 34 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 103. If 4; π₯; π¦; is an arithmetic sequence and π₯; π¦; 18 is a geometric sequence, what is one possible value of π₯? (A) (B) , 8 , 7 (C) 1 (D) 4 FUNCTIONS AND INEQUALITIES Z 104. The quadratic π₯ 7 + ππ₯ + π = 0 has equal roots. What is the value of YU ? (A) 1 π (B) 2 (C) π (D) −4 (E) ±2 105. If π(π₯) is a quadratic function that π (1) = 2 , π(2) = 4 and π(4) = 14, determine π(3). (A) π (B) 9 (C) 10 (D) 11 (E) 12 106. The lines π¦ = 2π₯ + 3 and π¦ = ππ₯ − 3 intersect above the line π¦ = 5. It follows that: (A) π < −8 (B) −8 < π < 0 (D) 2 < π < 8 (E) π > 8 (C) 0 < π < 2 107. If f ( x) = ax + 3 and f ( f (2)) - 3a = 11 , then a possible value of a is: (A) -2 (B) -1 108. (C) 3 (D) 4 y x A hyperbola with equation y = 6 and a parabola with equation y = x 2 - 7 x intersect in three points. The x-coordinate of the positive intercept is: (A)2 (B) 3 (C) 4 (D) 5 P a g e 35 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 109. The line y = a( x + b) + c is reflected in the y-axis. What is the new equation? (A) y = c - ab - ax (B) y = ab - c + ax (C) y = ab + c - ax (D) y = ax - ab - c 110. Given: a b - + c = 0 then x can be expressed as: x2 x (A) x = -b ± b2 + 4ac 2a (B) x = (C) x = b ± b2 - 4ac 2c (D) x = 2a -b ± b 2 - 4ac 2c -b ± b 2 - 4ac r28 111. What is the range of the function: 7(d-.)U = 1 (A) π¦ ≤ 1 (B) π¦ ≤ 2 112. Determine π 2, (π₯) if π (π₯ ) = T (C) π ≥ π (D) π¦ ≥ 5 . -7 • 7d π (A) d-. 7d (B) π2ππ (C) d2. (D) .d-7 d , d 113. Which graph represents the function π(π₯ ) = − “.” y y (A) x (B) y x y (C) (D) x x P a g e 36 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE d-, 114. If π(π₯ ) = d2, and π (π) = 5, what is the value of π(2π)? (A) π (B) 4 (C) 6 (D) 8 (E) 10 115. If π(π₯) is a quadratic function x such that π (−2) = −6, π (0) = −4 and π (1) = 0 what is the value of π(−1) ? (A)−5 (B) −4 (C) -π (D) -3 (E) −2 116. How many real solutions are there of the equation 2d = π₯ 7 ? (A) 0 (B) 1 (C) π (D) 3 (E) 4 117. A parabolic arch stands on level ground and has a span π΄π΅ of 40 metres. The highest point (the centre of the arch) is 16 metres above the point π, the midpoint of π΄π΅. What is the height (in metres) of the arch above a point on π΄π΅ 5 metres from π? (A) 14.75 (B) ππ (C) 15.25 (D) 15.5 (E) 15.75 d2, 118. The solution to the inequality 7d2. < 0 is π . (A) π < π₯ < π (B) π₯ < 1 OR π₯ > 7 7 (D) π₯ < .orπ₯ > 1 7 (C) . < π₯ < 1 (E) π₯ < 1 , 119. If π(π₯ ) = 1 − d and π(π₯ ) = 1 − π₯ then πeπ(π₯ )f − πeπ(π₯ )f is equal to: (A) ,2d2d U (B) d2d U 2,2d2d U (D) ,2d-d U 7(d2,) U 2π-π2ππ (C) π(π2π) d (E) 0 120. If π(π₯) is a quadratic function such that π(−1) = −3 , π (1) = 1 and π (2) = 12, find π(3). (A) 8 (B) 11 (C) 17 (D) ππ (E) 35 , 121. The equation 8 (4π₯ 7 − 8π₯ − π) = 30 is satisfied when π₯ = −5 and when π₯ = 7. What is the value of 2π? (A) ππ (B) −40 (C) 20 (D) −20 (E) 0 P a g e 37 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE , 122. If π₯ > d π₯ ≠ 0, which of the following statements is true? (A) (B) (C) (D) –1 < π₯ < 1 π₯ < – 1 or π₯ > 1 π₯ < – 1 or 0 < π₯ < 1 π₯ > 1 or – 1 < π₯ < 0 , , 123. If f(x) = −π₯ 7 + 7 , π₯ ≠ 0 then π(− I) is: (A) , −π (B) − 1¦π7 − π , , (C) IU − I (D) − 1¦π7 − 1¦π IU STRAIGHT LINES, CO-ORDINATE GEOMETRY AND CIRCLES 124. Two tangential circles are shown. The smaller circle is also a tangent to the x and y axes. The larger circle has equation ( x - 23)2 + y 2 = 81. y (π₯ − 23)7 + π¦ 7 = 81 x The equation of the smaller circle is: (A) x 2 - 16 x + y 2 - 16 y + 64 = 0 (B) ( x - 1) + ( y - 1) = 1 (C) x 2 - 10 x + y 2 - 10 y + 25 = 0 (D) ( x - 2) + ( y - 2) = 4 2 2 2 2 125. A regular octagon is shown with OP = 2 units. y Q P O R x The y-intercept of the line passing through Q and R is: P a g e 38 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE (B) 4 - 2 (A) 4 (C) 2 + 4 2 (D) 4 + 2 2 126. A circle with equation x 2 + y 2 - 2 x - 4 y = 4 is rotated 900 anticlockwise and then enlarged by scale factor 2. The equation of the transformed circle is: (A) ( x - 2) + ( y + 1) = 36 (B) x 2 + y 2 + 8x - 4 y = 16 ( x + 2) + ( y -1) = 18 (D) x 2 + y 2 + 4 x - 2 y = 13 2 (C) 2 2 2 127. The smallest possible value of π₯ 7 + π¦ 7 − 6π¦ + 14 is (A) 1 (B) 2 (C) 3 (D) 4 (E) π EUCLIDEAN GEOMETRY 128. In triangle π΄π΅πΆ, ∠π΄ = 90 and D is the foot of the altitude from π΄. If ∠π΅ = π and π΅πΆ = π then π΄π· is equal to (A) ππ ππ7 π (B) ππππ 7 π (C) ππ‘ππ π (D) ππ ππ2π (E) πππππ½ππππ½ 129. In triangle π΄π΅πΆ, π΄π΅ = 8, π΄πΆ = 15 and π΅πΆ = 17. What is the radius of the inscribed circle? (A) π (B) 2√2 (C) 1 + √3 (D) √7 (E) √10 130. A circle with centre π is inscribed in triangle ABC. If ∠π΄ = 70° , ∠π΅ = 80°, determine ∠π΅ππΆ. (A) 100° (B) 110° (C) 115° (D) 120° (E) πππ° 131. In triangle π΄π΅πΆ points π· and πΈ lie on π΄π΅ and π΄πΆ respectively, with π·πΈ parallel to π΅πΆ. If π΄π· = π, π·π΅ = π and π΄πΈ = π then πΈπΆ is equal to (A) π + π − π kl (B) ¶ (C) π + π − π ππ (D) π (E) π + π − π P a g e 39 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 132. In the figure, the circle with centre O passes through A and B, and BD is tangent to the circle. If ∠π΄ππ΅ = 70°, then ∠π·π΅πΆ is equal to D O 70° A (A) 30° C B (B) ππ° (C) 40° (D) 45° (E) 50° 133. Consider the following diagram: C B 30° A O If O is the centre of the circle and AC is a tangent to the circle, what is the value of π΄¸? (A) 15° (B) 20° (C) 25° (D) ππ° (E) 45° (D) 40° (E) 45° 134. Consider the following diagram: P • 160° C Q 45° R C is the centre of the circle. What is the value of ∠ πππΆ? (A) 25° (B) 30° (C) ππ° P a g e 40 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE GENERAL GEOMETRY AND MENSURATION 135. A circle has a diameter of 4π₯ + 12. The area of the circle is (A) ππ ππ + πππ π + πππ (B) 8ππ₯ 7 + 24ππ₯ + 36π (C) 16ππ₯ 7 + 96ππ₯ + 144π (D) 4ππ₯ 7 + 12ππ₯ + 36π (E) 16ππ₯ 7 + 48ππ₯ + 144π 136. In the diagram πππ = 120° and ∠πππ = 145°. What is the size of ∠πππ? (A) 45° (B) 60° (C) ππ° (D) 90° (E) 95° 137. The area of an isosceles triangle is 108ππ7 and its base is 18ππ. What is the perimeter of the triangle? (A) 12 ππ (B) 24 ππ (C) ππ ππ (D) 63 ππ (E) 225 ππ 138. A cube has edges of length 6. One of its square faces is π΄π΅πΆπ· and πΈ is the centre of the cube. What us the volume of the pyramid π΄π΅πΆπ·πΈ? (A) 54 (B) 36 (C) 108 (D) 72 (E) 216 139. Circle π΄ has radius of π. Circle π΅ has circumference of 8π. Circle πΆ has an area of 9π. List the circles in order, from smallest to largest radius. (A) π΄, πΆ, π΅ (B) π΅, π΄, πΆ (C) πΆ, π΅, π΄ (D) π΅, πΆ, π΄ (E) πͺ, π¨, π© 140. In triangle π΄π΅πΆ, the bisector of ∠π΄ meets π΅πΆ in π·. π΄π΅ = 6, π΅π· = 3 and π·πΆ = 4, what is the length of πΆπ΄? (A) 9 (B) π (C) 10 (D) 7 (E) 6 P a g e 41 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 141. Triangle π΄π΅πΆ is isosceles with π΄π΅ = π΅πΆ. Point π· is the midpoint of both π΅πΆ and π΄πΈ, and πΆπΈ = 10. What is the length of π΅π·? (A) 8 (B) π (C) 10 (D) 6 (E) 7 ˆ = q . π΄π ^ π·πΆand πΆπ ^ π΄π΅. 142. π΄π΅πΆπ· is a rhombus with π΄π· = π and ADC A N M C B m D The area of rectangle π΄ππΆπ is: (A) m2 sin q .cos q (C) 12 m 2 (2sin q - sin 2q ) (B) m 2 sin 2q (D) 12 m2 ( cos 2q .cos q ) 143. A right square-based pyramid is shown below. The base edges are each 10 cm whilst the slant edges are each 13 cm. 13 cm 10 cm The surface area of the solid is: (A) 580 cm2 (B) 360 cm2 (C) 620 cm2 (D) 340 cm2 P a g e 42 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 144. A tunnel has a semi-circular cross-section and a diameter of 10 m. If the roof of the bus just touches the roof of the tunnel when its wheels are 2 m from one side, the height is the bus is: (A) 4m (B) 21 m (C) 12 m (D) 2 6 m 0 145. The interior angle of a regular polygon is 1140 . 7 The number of sides of the polygon is: (A) 21 (B) 19 (C) 17 (D) 13 146. In the diagram AC ^ BD and AD ^ AB . CD = 4 units and BC = 9 units. A x D 4 9 C B The value of x is: (A) 6 (B) 6 (C) 5 (D) 13 147. The area enclosed by the graphs of π¦ = 2π₯ + 4, π₯ + π¦ = 4 and π¦ = 0 is (A) 24 (B) ππ (C) 4√10 (D) 2√5 (E) 36 P a g e 43 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE JÅÆ Y¶ÅY 148. The circumference of a circle is doubled. The ratio ǶÈÉÈJYÊ Y¶ÅY is Ë (A) 7 7 (B) Ë (C) 2π (D) 2 (E) π 149. A triangle has vertices π΄ (3 ; 5), π΅ (1 ; 3) and πΆ (5 ; 2). What is the area of triangle π΄π΅πΆ? (A) 4 (B) π (C) 6 (D) 7 (E) 8 150. A solid rectangular block of wood measuring 10 ππ by 8 ππ by 7ππ is painted white all over, then cut into 1 ππ cubes. How many small cubes have paint on none of their faces. (A) πππ (B) 320 (C) 360 (D) 420 (E) 480 151. The circumference of a circle is equal to the perimeter of a square. What is the ratio Area of square : Area of circle? π (A) π 7 (B) Ë (C) 4 (D) Ë √7 √7 (E) Ë 152. Thirty-six 1 × 1 × 1 cubes are used to make a rectangular prism. How many different rectangular prisms can be made, using all 36 cubes? (A) 5 (B) 6 (C) 7 (D) π (E) 9 153. In rectangle π΄π΅πΆπ·, π΄π΅ = 2 and π΄π· = 4. The area of the circle with centre π΄ that passes through πΆ is (A) 25π (B) πππ (C) 16π (D) 12π (E) 9π 154. The angles of a triangle are in the ratio 2 βΆ 3 βΆ 5. What is the difference between the largest and smallest angle? (A) 9° (B) 18° (C) 36° (D) 45° (E) ππ° 155. Triangle π΄π΅πΆ is right angled at πΆ and π· lies on π΅πΆ. If π΄π΅ = 14, π΄π· = 10 and πΆπ· = 5, the perimeter of triangle π΄π΅π· is (A) 24 + 5√2 (B) 24 + 3√3 (C) 29 (D) ππ (E) 31 156. A rectangle is made up of three rows of four squares each. The area of each square is 4. What is the perimeter of the rectangle? (A) ππ (B) 30 (C) 36 (D) 40 (E) 48 P a g e 44 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 157. Let π be the area of a triangle with sides of length 25, 25and 30. Let π be the area of a triangle with sides of length 25, 25and 40. What is the relationship between π and π? 4 . (A) π = ,9 π (B) π = 8 π (C) π = π 8 (D) π = . ,9 (E) π = 4 π 158. In triangle π΄π΅πΆ, ∠π΄ = 50°. The bisectors of ∠π΅ and ∠πΆ meet in π, inside the triangle. The size of ∠π΅ππΆ is (A) 100° (B) 105° (C) 110° (D) πππ° (E) 120° 159. 120° The area of the circle is 4π₯. What is the area of the shaded region? 160. A) π(ππ 2π€π) B) d(8Ë2.€.) C) d(8Ë2.) D) d(8Ë2€.) E) None of the above. ππ . . Ë Consider the following diagram: 6 B C P a g e 45 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE ABCD is a rectangle with a perimeter of 30. Find the length of FA. (A) 3 161. (B) π√π (D) 5√3 (E) 8 The area of a rectangle is 15π₯ 7 + 29π₯ + 12. The length of one side is 3π₯ + 4. What is the value of π₯ if the shape needs to be a square? π (A) 0 162. (C) 6 , (B) π (C)1 7 (D)1 (E) −1 Consider the following regular hexagonal prism: The side lengths of the base are equal to a and the height of the prism is h as shown in the diagram. The volume of the prism is π7 . h Determine h. a (A) 163. 7 √. , (B) .√. (C) Consider the following diagram: a a , π (D) π√π √. 8 (E) .√. O 45° • P R 4 S P is the centre of the circle, and RS = 4. <ROS = 45°. What is the circumference of circle P? (A) 2π (B) 4√2π (C) 4π (D) 8√2π (E) 8π P a g e 46 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 164. What is the area of the shaded part in terms of r? (A) 16 π π 7 (B) 12 π π 7 (C) 11 π π 7 (D) 7 π π 7 TRIGONOMETRY 165. cos7 π₯ − sin7 π₯ is equal to (A) (πππ π₯ − π πππ₯ )7 166. (C) -1 (D) cos2x In triangle π΄π΅πΆ, ∠π΄ = 90 and D is the foot of the altitude from π΄. If ∠π΅ = π and then π΄π· is equal to: (A) ππ ππ7 π 167. (B) 1 (B) ππππ 7 π (C) ππ‘ππ π π΅πΆ = π (D) ππ ππ2π (E) πππππ½ππππ½ (D) πππ 55 (E) πππ 65 πππ 65. π ππ40 + πππ 25. πππ 40 is equal to: (A) πππππ (B) πππ 25 (C) πππ 35 P a g e 47 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 168. , , If π‘πππ΄ = 7 and π‘ππ(π΄ + π΅) = . , then π‘ππ (2π΄ + π΅) is equal to: , 0 (A) 8 169. (B) 9 ,9 (B) ,0 (D) πππ (C) 764 πππ ,8. (E) 41 π ππ(90 − π₯ ). πππ (180 − π₯ ) − π‘πππ₯. πππ (−π₯ ). π ππ (180 + π₯) is equal to: (A) −1 (B) 1 (C) πππ 2π₯ (D) 0 (E) −πππππ Four points π΄, π΅, πΆ and π· lie in a plane, with π΅ the midpoint of π΄πΆ. If π΄π΅ = π΅πΆ = π΅π· = 13 and πΆπ· = 24, find the length of π΄π·. (A) 11 172. 870 1 (E) 9 6 .7, 171. (D) π If π πππΌ = ,1 then π‘ππ2πΌ is equal to: (A) 770 170. 7 (C) 0 (B) 9 (C) 13 (D) 12 (E) ππ ÐÈJÑ For 0 < π΄ < 90 , ,2ÒÇÐÑ is equal to: (A) π πππ΄ − π‘πππ΄ (B) ,2ÐÈJÑ ÒÇÐÑ ÒÇÐÑ π-ππππ¨ (C) ππππ¨ ÒÇÐÑ (D) ,2ÐÈJÑ (E) ,-ÐÈJÑ 173. The maximum value of 3 − 8π πππ₯. πππ π₯is: (A) π 174. (B) 11 . (B) 260° (C) 220° (D) 340° 7 If π ππ6π₯ = − 0 , then the value of (π ππ3π₯ − πππ 3π₯ )7 is: (A) 176. (D) −5 One solution to the equation π ππ “7 π₯” = π is 20°. Which of the following is NOT a solution to the equation? (A) -140° 175. (C) −1 π π . (B) 0 , (C) − 0 , (D) 0 . (E) − 0 The function f ( x) = 2sin 30°.sin x + 2cos150° cos x could be represented by which of the following graphs? P a g e 48 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 177. (A) (B) (C) (D) If π‘πππ΄ + π πππ΄ = 3, then πππ π΄ is equal to: , π (A) 9 178. (B) ππππ¨ (E) 6 (C) ππ ππ΄ (D) π πππ΄ (E) πππ‘π΄ For all angles π΄ and π΅, π πππ΄πππ π΅ is equal to: Ñ π (B) π (π¬π’π§(π¨ + π©) + π¬π’π§(π¨ − π©)) , (C) 7 (cos(π΄ − π΅) + sin(π΄ + π΅)) , , (D) 7 sin(π΄π΅) , (E) 7 sin (π΄ + π΅) , If π‘πππ΄ = Y and tan B= Z , then tan (π΄ + π΅) is equal to: Y-Z (A) YZ 181. 0 (D) . 8×Y¶ÅYÑÔÕ (A) tan “Ô” 180. 7 (C) 1 In triangle π΄π΅πΆ, ZU -Ò U 2YU is equal to: (A) πππ π΄ 179. 8 (B) π 7 (B) Y-Z , π-π (C) YZ (D) ππ2π YZ (E) Y-Z2, If π‘ππ20 = π‘,then π‘ππ50 is equal to: π2ππ (A) ππ (B) 72u U u (C) ,-7u U u (D) 7-u U u (E) ,-u U u P a g e 49 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 182. , (A) −2 183. (B) 2 (B) 55ππ π (D) 48ππ (E) ππππ (D) −1 (E) − 7 (D) 2√7 (E) 5√2 √. (C) 7 In triangle ABC,points π, π and π lie on the sides π΄π΅, π΅πΆ and πΆπ΄ respectively. If π΅π = π΅π, πΆπ = πΆπ and ∠πππ = 40° , determine ∠ππ΄π (B) 70° (C) 80° (D) 90° (E) πππ° π ππ15°. πππ 15° is equal to: (B) π‘ππ30° √. (C) 8 (D) , √7 π (E) π , If π‘πππ΄ + ÒÇÐÑ = 2 then πππ π΄ is equal to 9 0 (A) ,, 189. (C) − 7 (B) π (A) π‘ππ15° 188. (E) √2 In βπ΄π΅πΆ, ∠πΆ = 2∠π΄, π΄πΆ = 5, π΅πΆ = 4. Determine π΄π΅ (A) 60° 187. (C) 54ππ , (B) π (A) 2√10 186. π (D) − π πππ 25°. πππ 35° + πππ 65°. πππ 125° is equal to: (A) 1 185. , (C) 7 A vertical stick of height 84ππ casts a shadow 108ππ long. Next to it is another vertical stick of length 35ππ. How long is the shadow of the second stick? (A) 59ππ 184. , If π‘πππ₯ + ÒÇÐd = 2 then π‘πππ₯ − ÒÇÐd equals (B) 4 . (D) π 8 (D) (C) 1 π (E) 6 1 √11 ,, (E) πππ 1 If sin 2 π₯ = ,, , then πππ 2π₯ is equal to: √1. (A) ,7, 6 (B) ,,4 (C) ,, ππ P a g e 50 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 190. A ladder rest on a wall at an angle of 45° as illustrated in the diagram. If the ladder moves 1 m down the wall, what is the angle that the ladder will now make with the wall? 7 (A) π = πππ 2, “ ” √7 7√. (B) π = πππ 2, “ . ” 3m 45° , (C) π = πππ 2, “7” √. (D) π = πππ 2, “ 7 ” √π (E) π½ = πππ2π “ π ” 191. If π(π₯) = π πππ₯ − 1 and π(π₯ ) = tan π₯, how many times do they intersect, if π₯ ∈ [0°; 360°]? (A) 0 192. 3m (B) 1 (C) π (D) 3 (E) 4 Consider the following diagram: π What is the value of π in the diagram? (A) 10° 193. (B) 30° (C)45° (D) 50° (E) 60° Consider rhombus ABCD: A D ∝ B m C π΅π΄¸πΆ =∝ and BC = m Find AC. P a g e 51 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE (A) 2π√1 + πππ 2 ∝ (D) √2π√1 − πππ 2 ∝ 194. (B) √ππ√π + ππππ ∝ (E) 1 + πππ 2 ∝ (C) 2π√1 − πππ 2 ∝ d What is the minimum value of π¦ if π¦ = 1 + π ππ 7 and π₯ ∈ [0°, 360°]? (A) 0 , (B)7 , (C) π (D) 1 7 (E) 2 195. What is the value of: πππ 45° + πππ 60° (A) −1 √0 (B) 7 (C) π-√π (D) π √7-√. 7 (E) 7√7-, 7 196. Given D ABC and D ABD in the following diagram: A 15° 4 B C 30° D What is the perimeter of DACD? (A) 2√6 − 2√2 (B) 4√3 (C) 4 + 2√6 + 2√2 (D) √2 + 4 + √6 (E) 2√6 + 6√2 197. If the graph of cos (π₯ + 90) is shifted 30° to the left, what is the new graph? (A) cos (π₯ + 30) (B) –sin (π₯ + 30) (C) cos (π₯ - 60) (D) –sin (60 - π₯) 198. The expression sin π₯ 7 + π₯ can also be written as. (A) sin (2d + π₯) (B) π₯ (sin π₯ + 1) (C) (sin π₯)7 + π₯) (D) sin (π₯ 7 ) + π₯ P a g e 52 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE CALCULUS 199. , The maximum value of d U-0d-1 is . , (A) 8 200. (B) 1 , (D) 7 , (E) 8 For which positive value of π is the line π¦ = ππ₯ − 9 tangent to the parabola π¦ = π₯ 7 ? (A) 2 201. π (C) π (B)3 (C) π (D) 8 (E) 9 d-, If π₯ is a real number, the maximum value of d U -. is equal to , , (A) . (B) 9 , (C) − 9 π , (D) π (E) − 7 PROBABILITY 202. Ann and Bob each throw coins. What is the probability that Ann throws more heads than Bob? , π (A) 7 (B) π , (C) 6 0 (D) ,9 . (E) 6 TRICK QUESTIONS AND WORD PROBLEMS 203. A girl cycles to school at a constant speed of x km/h and returns at a constant speed of y km/h. An expression for her average speed is: (A) 204. x+ y 2 (B) x - y 2 (C) 2xy x+ y (D) 2( x + y) xy I am in a queue with π fewer people behind me than in front of me. There are three times as many people in the queue as there are behind me. How many people are behind me (in terms of π)? (A) π (B) 2π (C) π + π (D) 2π – 1 P a g e 53 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 205. pI A man drives at 60 à for 50 ππ, and then drives at 40 ππ/β for another 50 ππ. What is his average speed, in ππ/β, for the whole journey? (A) 46 206. (E) 54 (C) 7.75 (B) π (D) 8 , T lã (C) 4 (E) 8.25 ,M = 1 then π is equal to: (D) 5 (E) 6 (B) πππππ (C) 18097 (D) 18098 (E) 18099 If 5k = 7 , 7l = 9 , 9¶ = 11 and 11Ð = 25 , what is the value of ππππ ? (A) 1 210. (D) 52 If the number 107M,, − 2011 is written as an integer, the sum of its digits is (A) 18095 209. (B) π. π If π, π and π are positive integers such that π + (A) 2 208. (C) 50 Jacob ran for 10 ππ at 6 ππ/β and then ran back along the same route at 10 ππ/β. What was his average speed, in ππ/β, for the whole route? (A) 7 207. (B) ππ (B) π (C) 3 (D) 4 (E) 5 A boy runs from his home to school at 9 ππ/β then walks back home at 5 ππ/β. What was his average speed, to one decimal place, for the trip to school and back? (A) 6.3 ππ/β (B) π. π ππ/π (C) 6.6 ππ/β (D) 6.9 ππ/β (E) 7.1 ππ/β P a g e 54 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE NBT COURSE QUANTITATIVE LITERACY PRACTICE TEST 1 20 MINUTES SIMULTANEOUS EQUATIONS SYMBOLS 1. 4. If π₯ + π¦ = 8 and π¦ − π₯ = −2, then π¦ = (A) (B) (C) (D) (E) (A) (B) (C) (D) (E) -2 3 5 -8 10 B If 4π + 3π = 19 and π + 2π = 6, then π + π = (A) (B) (C) (D) (E) -8 -2 2 20 40 SPECIAL TRIANGLES SIMULTANEOUS EQUATIONS 2. If π ∗ π = π(π − π )for all integers π πππ π , then 4 ∗ (3 ∗ 5) equals 4 5 6 7 8 60° 150° A C Note: Figure not drawn to scale. SYMBOLS 3. 5. , If π₯ ≠ 0 let ¬π₯ be defined by ¬π₯ = π₯ − d , What is the value of ¬2 − ¬ 7 ? (A) (B) (C) (D) (E) 0 3/2 3 6 9/2 In triangle π΄π΅πΆ above, if π΄π΅ = 4, then π΄πΆ = (A) (B) (C) (D) (E) 6 7 8 9 10 P a g e 55 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE SPECIAL TRIANGLES RATES B 9. 5 A 6 (A) (B) (C) (D) (E) C Note: Figure not drawn to scale. 6. If the perimeter of triangle π΄π΅πΆ above is 16, what is its area? (A) (B) (C) (D) (E) 8 9 10 12 15 10. In a group of 24 people who are either homeowners or renters, the ratio of homeowners to renters is 5:3. How many homeowners are in the group? (A) (B) (C) (D) (E) 8 9 12 14 15 RATIOS 8. Magazine A has a total of 28 pages, 16 of which are advertisements and 12 of which are articles. Magazine B has a total of 35 pages, all of them either advertisements or articles. If the ratio of the number of pages of advertisements to the number of pages of articles is the same for both magazines, then Magazine B has how many more pages of advertisements than Magazine A? (A) (B) (C) (D) (E) à æ βπ æ β+7 β−π æ à RATES RATIOS 7. If David paints at the rate of β houses per day, how many houses does he paint in π days, in terms of β and π? Bill has to type a paper that is π pages long, with each page containing π€ words. If Bills types an average of π₯ words per minute, how many hours will it take him to finish the paper? (A) (B) (C) (D) (E) 60π€ππ₯ Æd 9Mk 9MÆk d Ækd 9M Æk 9Md REMAINDERS 11. When π§ is divided by 8, the remainder is 5. What is the remainder when 4π§ is divided by 8? (A) (B) (C) (D) (E) 1 3 4 5 7 2 3 4 5 6 P a g e 56 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE REMAINDERS PERCENTAGES 12. 15. When π is divided by 12, the remainder is 0. What is the remainder when 2π is divided by 6? (A) (B) (C) (D) (E) 0 1 2 3 4 (A) (B) (C) (D) (E) AVERAGES 13. The average (arithmetic mean) of six numbers is 16. If five of the numbers are 15, 37, 16, 9 and 23, what is the sixth number? (A) (B) (C) (D) (E) Eighty-five percent of the members of a student organization are registered to attend a certain field trip. If 16 of the members who registered were unable to attend, resulting in only 65 percent of the members making the trip, how many members are in the organization? 64 68 72 80 96 PERCENTAGES 16. -20 -4 0 6 16 If a sweater sells for R48 after a 25 percent markdown, what was its original price? (A) (B) (C) (D) (E) R56 R60 R64 R68 R72 AVERAGES 14. The average (arithmetic mean) of five numbers is 8. If the average of two of these numbers is -6, what is the sum of the other three numbers? (A) (B) (C) (D) (E) 28 34 46 52 60 MULTIPLE AND STRANGE FIGURES 17. P Q S R In the figure above, square πππ π is inscribed in a circle. If the area of square πππ π is 4, what is the radius of the circle? (A) (B) (C) (D) (E) 1 √2 2 2√2 4√2 P a g e 57 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE MULTIPLE AND STRANGE FIGURES COMBINATIONS 20. Note: Figure not drawn to scale. 18. In the figure above, the quarter circle with center π· has a radius of 4 and rectangle π΄π΅πΆπ· has a perimeter of 20. What is the perimeter of the shaded region? (A) (B) (C) (D) (E) Three people stop for lunch at a hotdog stand. If each person orders one item and there are three items to choose from, how many different combinations of food could be purchased? (Assume that order doesn’t matter; e.g. a hotdog and two sodas are considered the same as two sodas and a hotdog.) (A) (B) (C) (D) (E) 6 9 10 18 27 20 − 8π 10 + 2π 12 + 2π 12 + 4π 4 + 8π COMBINATIONS 19. Five people attend a meeting. If each person shakes hands once with every other person at the meeting, what is the total number of handshakes that take place? (A) (B) (C) (D) (E) 10 15 25 120 3125 P a g e 58 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE NBT COURSE MATHEMATICS INTRODUCTION PRACTICE TEST 2 20 MINUTES ABSOLUTE VALUE RATIONAL EQUATIONS AND INEQUALITIES 1. d V 28d If d V 20d U -9d = 0 , and π₯ ≠ 0, 2, or 3, what is the value of π₯? (A) -3 (B) -2 (C) 0 (D) 1 (E) 4 RADICAL EQUATIONS 2. If €π₯ + 2π¦ − 2 = 15, what is the value of π¦ in terms of π₯? (A) (B) (C) (D) (E) Which of the following equations best represents the graph above? (A) (B) (C) (D) (E) 7642d 7 289 − π₯ ,12d 7 17 − π₯ 289 π¦ = |π₯| π¦ = |π₯| − 1 π¦ = |π₯ − 1| π¦ = |π₯ − 1| − 1 π¦ = |π₯ − 2| FUNCTION NOTATION MANIPULATION WITH INTEGER AND RATIONAL EXPONENTS 3. 4. π V What is the value of 4π + 4U ? (A) 4 (B) 8 (C) 10 (D) 16 (E) 64 5. (d U24) If π(π₯ ) = (d-.) , What is the value of π(−4)? (A) (B) (C) (D) (E) -7 , −8 0 , 8 7 P a g e 59 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE CONCEPTS OF DOMAIN AND RANGE 6. If π(π₯ ) = 2 − √π₯ − 7, and π(π₯) is a real number, which of the following cannot be the value of π₯? (A) 4 (B) 7 (C) 11 (D) 102 (E) 496 LINEAR FUNCTONS – EQUATIONS AND GRAPHS FUNCTIONS AS MODELS 8. The graph shows the function π(π₯ ). What is the value of π(0)? (A) (B) (C) (D) (E) 7. The graph represents the annual tuition for college π from 2000 -2003. Based on the graph, what was most likely the tuition for college for π in 1999? (A) (B) (C) (D) (E) −1 , −7 0 1 3 QUADRATIC FUNCTIONS – EQUATIONS AND GRAPHS $6,000 $9,000 $15,000 $18,000 $21,000 9. Which of the following equations best describes the curve above? (A) (B) (C) (D) (E) π¦ = π₯7 + 4 π¦ = π₯7 − 1 π¦ = −π₯ 7 + 4 π¦ = −π₯ 7 + 1 π¦ = −π₯ 7 − 1 P a g e 60 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE QUALITATIVE BEHAVIOR OF GRAPHS AND FUNCTIONS PROPERTIES OF TANGENT LINES 12. 10. The figure above shows the graph of π(π₯). What is the largest value of π(π₯) shown in this figure? (A) (B) (C) (D) (E) −2 2 4 6 6.5 ëëëë is 8 units long In the figure above, π΅π· and tangent to the circle at point C. ëëëë π΄πΆ is a diameter of the circle. If the circumference of the circle is 6π ,what is the area of βπ΄π΅π·? (A) (B) (C) (D) (E) 9 12 24 9π 10π ANALYTICAL GEOMETRY SEQUENCES INVOLVING EXPONENTIAL GROWTH 11. 13. If point π is (2,4) and point π is (7,7), ëëëë? what is the length of π π (A) (B) (C) (D) (E) 2 √7 √34 9 √202 A scientist is running an experiment with two species of bacteria that grow exponentially . If species A doubles in population every two days, species B doubles in population every five days, and each species began the experiment with a population of 50 bacteria, what will the difference be between the populations of the two species after ten days? (A) (B) (C) (D) (E) 200 800 1,200 1,400 1,500 P a g e 61 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE TRANSFORMATIONS AND THEIR EFFECT ON GRAPHS OF FUNCTIONS 14. The figure above shows the graph of the function β(π₯). Which of the following figures shows the graph of the function β(π₯ + 1)? (A) (C) (E) (B) (D) P a g e 62 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 17. SETS 15. If set π΄ = {2,3,5,7,10} and set π΅ = {3,4,5,6,7}, how many elements are in the intersection of the two sets? (A) (B) (C) (D) (E) 2 3 5 7 10 DIRECT AND INVERSE VARIATION 16. The rate at which a certain balloon travels is inversely proportional to the amount of weight attached to it. If the balloon travels 10 inches per second when there is a 2-gram weight attached to it, approximately how much weight must be attached to the balloon for it to travel 18 inches per second? (A) (B) (C) (D) (E) , (A) π¦ = 7π₯ (B) (C) (D) (E) π¦ = 7π₯ +4 π¦=π₯ π¦ = 2π₯ − 4 π¦ = 2π₯ , GEOMETRIC NOTATION FOR LENGTH, SEGMENTS, LINES, RAYS, AND CONGRUENCE 3 18. 0.4 grams 1.0 grams 1.1 grams 3.6 grams 10.0 grams DATA INTERPRETATION, SCATTER PLOTS, AND MATRICES Which of the following equations best fits these points? In the figure above, βπ΄π΅πΆ ≅ βπΈπΉπ·. What is the area of βπ΄π΅πΆ? (A) (B) (C) (D) (E) 6 7.5 6√2 6√3 12 TRIGONOMETRY 19. In the figure above, βπ΄π΅πΆ ≅ βπΈπΉπ·. What is the value of π₯? (A) (B) (C) (D) (E) 3 4 5 6 7 P a g e 63 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 20. The figure above shows a square inscribed in a square inscribed in another square. What is the probability that a point selected at random from the interior of the largest figure will fall within the shaded region? (A) , (B) (C) (D) (E) 0 , 8 , . 8 4 , 7 P a g e 64 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE NBT COURSE MATHEMATICS ADVANCED PRACTICE TEST 3 15 MINUTES 3. 1. 2. (A) (B) (C) (D) (E) In the figure above, what is the maximum number of nonoverlapping regions into which the shaded area can be divided using exactly two straight lines? (A) (B) (C) (D) (E) 3 4 5 6 7 A certain school event was open only to juniors and seniors. Half the number of juniors who had planned to attend actually attended. Double the number of seniors who had planned to attend actually attended. If the ratio of the number of juniors who had planned to attend to the number of seniors who had planned to attend was 4 to 5, then juniors were what fraction of attendees? (A) (B) (C) (D) (E) , 9 , 0 8 ,4 8 ,0 It cannot be determined from the information given. If π − π = 4 and π is the number of integers less than π and greater than π, then which of the following could be true? I. π=3 II. π=4 III. π=5 4. Volumes 12 through 30 of a certain encyclopedia are located on the bottom shelf of a book case. If the volumes of the encyclopedia are numbered consecutively, how many volumes of the encyclopedia are on the bottom shelf? (A) (B) (C) (D) (E) 5. I only II only III only I and II I, II and III 17 18 19 29 30 A reservoir is at full capacity at the beginning of summer. By the first day of fall, the level in the reservoir is 30 percent below full capacity. Then during the fall, a period of heavy rains increases the level by 30 percent. After the rains, the reservoir is what percent of its full capacity? (A) (B) (C) (D) (E) 60% 85% 91% 95% 100% P a g e 65 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 6. Two classes, one with 50 students and the other with 30, take the same exam. The combined average of both classes is 84.5. If the larger class averages 80, what is the average of the smaller class? (A) (B) (C) (D) (E) 7. 8. 7:3 6:5 13:8 21:11 35:18 11. , π₯ is 33 . % less than π¦ and 33 . % greater than π§. What percentage of π§ is π¦? (A) (B) (C) (D) (E) , 33 . % 40% 50% 7 66 . % 75% 4 5 8 9 10 A shop assistant increases the price of a sweater by 20%, increases it by another 25%, and then finally decreases it by 50%. If the sweater originally cost R100, what is the final price of the sweater? (A) (B) (C) (D) (E) 13. 5:3 4:3 10:9 16:15 12:11 How many multiples of 5 are there from -20 to 20, inclusive? (A) (B) (C) (D) (E) 12. 4 5 6 7 8 , The farmers market has oranges, apples and bananas . If the ratio of bananas to oranges is 5:4, and the ration of bananas to apples is 4:3, what is the ratio of oranges to apples? (A) (B) (C) (D) (E) Michael mows lawns for his summer job. He only averages three lawns a week for the first eight weeks, but then averages six lawns a week for the last four weeks. What is the average number of lawns he mowed per week during the entire summer? (A) (B) (C) (D) (E) 9. 87.2 89.0 92.0 93.3 94.5 In a pet shop, the ratio of puppies to kittens is 7:6, and the ratio of kittens to guinea pigs is 5:3. What is the ratio of puppies to guinea pigs? (A) (B) (C) (D) (E) 10. R60 R75 R80 R95 R105 What is the greatest value of π₯ so that 3π₯ + 7 < 21? (A) (B) (C) (D) (E) 3 4 5 6 7 P a g e 66 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 14. The ratio of boys to girls in the school play is 2:5. Three new boys join the group, for a total of nine boys. What is the new ratio of boys to girls? (A) (B) (C) (D) (E) 15. 2:3 3:4 3:5 4:5 5:5 Jim averaged 30 kilometres per hour for the first four hours of his trip, then averaged 42 kilometres per hour for the next two hours. What was Jim’s average speed for the entire trip? (A) (B) (C) (D) (E) 32 km.h-1 34 km.h-1 36 km.h-1 38 km.h-1 None of the above P a g e 67 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE NBT COURSE QUANTITATIVE LITERACY PRACTICE TEST 4 15 MINUTES INTERPRETATION OF VISUAL INFORMATION Study the following information given in the table and graph on the nutritional facts of various types of alcoholic beverages: CALORIES (cal) CARBS (g) PROTEIN (g) ALCOHOL CONTENT BY VOLUME (ABV) % Glass of white wine 120 0 0 12 Glass of red wine 102 0 0 14 Light beer 102 5 0 4 Lager beer 128 10 1,4 7 Wheat beer 165 16 2 7 Stout beer 170 6 0 7 Cider 210 30 0 12 Cosmopolitan 100 24 0,5 20 Mojito 242 40 0 20 Martini 70 17 0 20 Margarita 174 19 0 18 Long Island Ice Tea 454 62 0 30 Gin and Tonic 70 18 0 10 Whiskey and Soda 100 18 0,2 16 Brandy and coke 250 32 0 16 ALCOHOL VITAMINS COMMONLY DEPLETED A, B1, B2, B6, C, D, E, K A, B1, B2, B6, C, D, E, K A, B2, B6, C, D, E, K A, B1, B2, B6, C, D, E, K A, B1, B2, B6, C, D, E, K A, B1, B2, B6, C, D, E, K A, B1, B2, B6, D, E, K A, B1, B2, B6, D, E, K A, B1, B2, B6, D, E, K A, B1, B2, B6, C, D, E, K A, , B2, B6, D, E, K A, B1, B2, B6, D, E, K A, B6, C, E, K A, B1, B2, B6, C, D, E, K A, B1, B2, B6, C, D, E, K P a g e 68 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE P a g e 69 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 1. What is the ratio to the beverage that contains the most calories to the beverage that contains the least calories? A) B) C) D) E) 2. 6. 7. A, B1, B2, B6, C, D, E, K A, B6, C, D, E, K A, B2, B6, C, D, E, K A, B1, B6, C, D, E, K A, B6, E, K Which type of vitamin is depleted the least by ALL the alcoholic beverages? A) B) C) D) E) Vitamin B1 Vitamin C Vitamin B2 Vitamin B6 Vitamin K 20% 27% 73% 80% 100% According to what criterion are the following drinks arranged? Red Wine, Cider, Brandy and Coke, Mojito, Long Island Ice Tea A) B) C) D) E) 8. Margarita Brandy and Coke Light Beer Long Island Ice Tea Cosmopolitan What percentage of alcoholic beverages do NOT contain proteins? A) B) C) D) E) Which type of vitamins will be depleted regardless of the drink that is consumed? A) B) C) D) E) 4. White wine Light beer Cider Mojito Long Island Ice Tea Which type of alcoholic beverage will most likely cause intoxication? A) B) C) D) E) Which of the following beverages has the biggest calories : alcohol by content volume ratio? A) B) C) D) E) 3. 227:35 35:227 25:7 7:25 121:60 5. Alcohol by content volume Proteins Carbohydrates Calories No fixed arrangement What is the average calories contained in the beverages? A) B) C) D) E) 164 201 214 223 246 P a g e 70 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 9. What is the median value of the calories contained in all the beverages? A) B) C) D) E) 10. 11. 120 128 146 165 170 How many Mojitos must you drink in order to consume 1 kg of carbohydrates? A) B) C) D) E) B) C) D) E) If 100 g of sugar contains 387 calories, which of the following beverages contain 500 g of sugar? A) B) C) D) E) 13. 2 6 10 16 25 In South Africa the legal limit is a breath alcohol content of 0,24 g of 1000 ml. This means that brandy and whiskey drinkers can have one tot of 25 ml of alcohol every hour, and approximately one glass of red wine per hour. In order to stay within the legal limit, how much of the following may be consumed per hour? A) 12. According to the graph, what percentage of beverages contain more than 150 calories? A) B) C) D) E) 14. 7,7 brandy and coke beverages 10,4 whiskey and sodas 10 Cosmopolitans 5 Mojitos 10 glasses of white wine 50% 47% 45% 40% 37% What fraction of beverages contain less than 100 calories and less than 10 g of carbohydrates? A) B) C) D) E) None of the beverages 2/15 3/15 4/15 5/15 Two Long Island Ice Teas per hour A half a Long Island Ice Tea per hour Two glasses of white wine per hour One Cosmopolitan per hour Two ciders per hour P a g e 71 | 72 NATIONAL BENCHMARK TESTS PREPARATION COURSE 15. Which of the following combinations list an increase in the proteins contained in the beverages? A) B) C) D) E) Glass of white wine, Glass of red wine, Light Beer, Wheat Beer, Lager Beer Glass of white wine, Glass of red wine, Light Beer, Lager Beer, Wheat Beer Glass of white wine, Glass of red wine, Whiskey and Soda, Cosmopolitan, Wheat Beer Glass of white wine, Whiskey and Soda, Cosmopolitan, Lager Beer, Wheat Beer None of the above P a g e 72 | 72