Grade& 10:& Revision& Package& Topics& & ! ! ! ! ! ! ! ! Grade 10 Revision for IB DP Math Studies SL ! ! ! ! ! Instructions:!Read!carefully! & These& are& the& prior& learning& topics& that& you& should& have& mastered& prior& to& starting& Mathematics& SL/HL.& Please& make& sure& to& show& all& your& working&out.& Write& your& final& answer& in& the& box.& & &&& & & & & & & *Give& all& answers& either& as& an& exact& value& or& correct& to& 3& significant& figures& unless& stated& otherwise.& & & & 1& Revision& for& Math& Studies& SL& Grade& 10:& Revision& Package& Topics& & Numbers& Algebra& •! Forms&of&numbers:&integers,&fractions,&decimals,& exponents,&absolute&value,&standard&form&(scientific& notation),&recurring&decimals&and&surds/radicals& •! The&four&number&operations&(addition,&subtraction,& multiplication&and&division)&using&integers,&decimals& and&fractions,&including&order&of&operations& •! Simplification&of&expressions&involving&surds&(roots&or& radicals),&including&rationalizing&the&denominator& •! Calculate&squares,&square&roots,&cubes&and&cube&roots& of&numbers.&& •! Prime&numbers&and&factors,&including&greatest& common&factor&and&least&common&multiple& •! Integer,&Fractional&and&Negative&exponents/indices& •! Number&lines& •! Order&quantities&by&magnitude&and&demonstrate& familiarity&with&the&symbols&=, ≈, ≤, ≥, <, >,& •! Make&estimates&of&numbers,&quantities&and&lengths,& give&approximations&to&specified&numbers&of& significant&figures&and&decimal&places&and&round&off& answers&to&reasonable&accuracy&in&the&context&of&a& given&problem.&& •! Units&of&measurement& •! Ratio,&percentage;&direct&and&inverse&proportion& Sets&and&Numbers& •! Number&systems:&set&of&positive&integers&and&zero& (N),&integers&(Z),&rational&numbers&(Q),&irrational& numbers&(Q’),&and&real&numbers&(R)& •! Concept&of&notation&of&sets,&elements,&universal&(()& (reference&set,&empty&(null)&set,&complement,&subset,& equality&of&sets,&disjoint&sets,&Operations&on&sets;& union&and&intersection.&Communitive,&associative&and& distributive&properties.&& •! Venn&Diagrams& •! Number&sequences& Geometry& && Trigonometry& •! •! •! •! •! •! •! •! •! •! •! •! •! •! •! •! •! Geometrical&elements&and&their&classification& Perimeter&and&area&of&plane&figures.&Properties&of&triangles& and&quadrilaterals,&including&parallelograms,&rhombuses,& rectangles,&squares,&kites&and&trapeziums&(trapezoids);& compound&shapes.&& Volumes&of&prisms,&pyramids,&spheres,&cylinders&&&cones.& Distance& Angle&properties&and&measurement&in&degrees.&& Compass&directions&and&three&figure&bearings.&& Right]angle&trigonometry.&& Simple&applications&for&solving&triangles.&& Pythagoras’&theorem&and&its&converse.&& The&Cartesian&plane& Simple&transformations,&translation,&reflection,&rotation,& enlargement.&& Congruence&and&similarity,&including&the&concept&of&scale& factor&of&an&enlargement.&& The&circle,&its&centre&and&radius,&area&and&circumference.& The&terms&“arc”,&“sector”,&“chord”,&“tangent”&and& “segment”.&& Circle&geometry& Three]dimensional&coordinate&geometry&& Sine&and&cosine&rules&*& The&unit&circle&*& •! •! •! •! •! •! •! •! •! •! •! •! •! & Addition,&subtraction,&multiplication&and&division&of& algebraic&terms& Manipulation&of&linear&and&quadratic&expressions,& including&factorization,&expansion,&and&the&use&of&the& formula& Linear&functions,&their&graphs,&gradients&and&y]intercept&& Algebraic&fractions&& Integer&and&fractional&exponents&(including&negative& number&exponents)& Patterns&and&sequences& Algorithms& Functions& •! Types&of&functions:&linear,&quadratic,& exponential,&sine&and&cosine& •! Domain&and&range& •! Transformations& •! Composite&Functions& Equations:& •! Linear& •! Quadratic& •! Simultaneous& Solving&Inequalities&in&one&variable&or&quadratic&equations& Arithmetic&and&geometric&series& Algebraic&Fractions& Simultaneous&Equations& Statistics&and&Probability& •! •! •! •! •! •! •! •! •! Graphical&analysis&and&representation&(pie&charts,& histograms,&line&graphs,&scatter&plots,&box]and]whisker& plots)& Population&sampling& Measures&of&central&tendency/location&(mean,&mode,& median,&quartile,&percentile)&for&discrete&and&continuous& data& Measures&of&dispersion&(range,&interquartile&range)&for& discrete&and&continuous&data& Probability&of&an&event& Probability&of&independent,&mutually&exclusive&and& combined&events& Probability&of&successive&trials& Standard&deviation&*& Conditional&probability&*& & 2& Revision& for& Math& Studies& SL& Grade& 10:& Revision& Package& Topics& & Key!Formulae! ! ! ! ! ! & 3& Revision& for& Math& Studies& SL& Number& Sense& & SECTION!1:!Number!Sense! & Calculate:& & 1.! −5 × 5 − (−8) × 2& & & & & & & & 2.! 2 + 3(2 − 20 ÷ 24 )4 − (54 + 3) ÷ 2& & & & & & & & & Decimals& && Fractions& & 3.! Write& as& decimals.& & & & & & & & & & ! & & 4.! Write& as& fractions.& & & & & & & & & & & 5.! !Perform& the& following& operations.& Give& the& answer& as& a& decimal& and& a& fraction.& & 4& Revision& for& Math& Studies& SL& Number& Sense& & 50 × 0.1 = 77777777777777777777777777777435 × 0.01 = 77777777777777777777777777777777 & & & & & & & & & & & & & & & 6.! & & & & & & & & & 7.! Calculate.& Give& your& answer& as& a& fraction& and& a& decimal.&& 7 4 1 9 − ; × =& 2 3 5 & & & & & & & & & & & & & & & & & & 12 1 = 777777777777777777777777777777 =& 0.01 0.025 & 5& Revision& for& Math& Studies& SL& Number& Sense& & 8.! Nina& scored& 70& out& of& 80& in& a& test,& find& her& score& as& a& percentage.&& & & & & & & & & & & & & & & & 9.! Jeff& bought& a& car& for& $4000& and& sold& it& for& $5000.&What& is& his& percentage& profit?& & & & & & & & & & & & & & & & & 10.!John& bought& a& car& for& $4000& and& sold& it& for& $3000.&What& is& his& percentage& loss?& & & & & & & & & & & & & & & 6& Revision& for& Math& Studies& SL& Number& Sense& & 11.!A& school& has& 80& staff. 15%& of& the& staff& wear& glasses.&& Calculate& the& number& of& staff& that& wear& glasses.&& & & & & & & & & & & & & & & 12.!Ayesha& plays& hockey. Last& year& Ayesha& scored& 8& goals.& This& year& Ayesha& scored& 13& goals.& Calculate& the& percentage& increase& in& for& the& number& of& goals& scored.&& & & & & & & & & & & & 13.!56%& of& students& in& a& school& are& girls. There& are& 420& girls& in& the& school.&& Work& out& the& total& number& of& students& in& the& school.& & & & & & & & & & & & & & & & 7& Revision& for& Math& Studies& SL& Number& Sense& & 14.!Find& the& Lowest& Common& Multiple& (LCM).&& (or& Least& Common& Multiple)& of:&&&&& 60& and& 72& & & & & & & & & & & & 15.!Find& the& Greatest& Common& Factor& (GCF)& (or& Highest& Common& Factor)& of:&&& 21& and& 35& & & & & & & & & & & & 16.!Find& the& Greatest& Common& Factor& (GCF)& (or& Highest& Common& Factor)& of:&&& 21& and& 35& & & & & & & & & & & 17.!Find& the& Highest& Common& Factor& and& Lowest& Common& Multiple& of& 168& and& 180.& & & & & & & & & & & & & 8& Revision& for& Math& Studies& SL& Number& Sense& & 18.!Solve.& Leave& your& answer& in& Standard& form.& & & a)& & && b)& & && & c)& & & & & & & & & & & 19.!At& a& school& the& ratio& of& the& number& of& boys& to& number& of& girls& is& 9:11& There& are& 96& more!girls& than& boys.& Work& out& the& total& number& of& students& at& the& school.&& & & & & & & & & & & & & 20.!Water needs to be removed from an underground chamber before work can commence. When the water was at a depth of 3m, five suction pipes were used and emptied the chamber in 4 hours. If the water is now at a depth of 5m (same cross- section), and you want to empty the chamber in 10 hours time, how many pipes need to be used? & & & & & & & & & & 9& Revision& for& Math& Studies& SL& Number& Sense& & Sets!and!Venn!Diagrams! & 21.!& & & & & & & & & & & & 22.!Given& the& Universal& set&&ℰ = {odd7numbers7less7than715}7& where& A& and& B& are& subsets& of&ℰ.&& A = {prime numbers} B = {multiples of 3} List: & & & & & & & & & & & & & & (a)! A# ……………………………………………………………………………. & (b)!B# ……………………………………………………………………………. & (c)! A’& ……………………………………………………………………………. & (d)!B’& ……………………………………………………………………………. & & 23.!L = {2, 3, 5, 7, 11}, M = {3, 4, 5, 6}, O = {1, 2, 4, 5, 10, 20}. List: (a)! L ∩ O& ………………………………………………………………. ..& & & & & & & & & & & & & & & & & & & & & & & & (b)!L ∪ O&& ……………………………………………………………. …. & (c)! M ∪ O& ………………………………………………………………. ..& (d)!M ∩ O&& ……………………………………………………………. …. & (e)! Is&5 ∈ L ∩ M7?& …………………………………………………. ..& Explain& your& answer.& & & 10& Revision& for& Math& Studies& SL& Number& Sense& & 24.!Draw& a& Venn& diagram& for& the& following.& & Universal& Set:&777(7 = 7 {TUVWXWYZ7 ≤ 710}77 And& & & 77[7 = 7 {\]^V_YZ7_\720}77& &`7 = 7 {abcVTdcWZ7_\73}77 & & & & & & & & & & & & & & 25.!& & & subsets& of&ℇ& & & & & & & & & & & & & & & & & & & & & & & & & & & 11& Revision& for& Math& Studies& SL& Number& Sense& & & 26.!& & & & & & & & & & & & & & & & & & & & & 27.!& & & & Number&of&students&who&play&tennis&=&& & & & 28.!& & & & & & & & & & & 12& Revision& for& Math& Studies& SL& Number& Sense& & & 29.!& & 30.!& & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & 13& Revision& for& Math& Studies& SL& Number& Sense& & st 31.!Find the 51 term of the sequence 30, 23, 16, 9, ... 32.!Find the nth term formula of the sequence 7, 11, 15, 19, ... 33.!Find the first three terms of the sequence if un = 7n – 5 & & & & & & & & & & 34.!& & & & & & & & & & & & 14& Revision& for& Math& Studies& SL& Number& Sense& & 35.!Determine& the& value(s)& of& the& 7th& term& in& the& following& geometric& sequences.& Show& your& working& out.& u5& =1,& u8& =27,&& u7& =&& & & & & & & & & & & & & & & & & & & & & & & & & 36.!&&&& & & & & & & & & & 37.!& & 15& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & SECTION!2:!Foundations!of!Algebra! 1.! Simplify& 5x& +& 4y& +& x& –& 7y&& & & & & & & & & 2.! Solve& 3(x& –& 2)& =& x& +& 7&& & & & & & & & & & & 4fg 3.! Solve& h = 1&& & & & & & & & & & & & 4.! Solve& 9x–11=5x+7&& & & & & & & & & & & & & 16& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & 5.! Expand& and& simplify:& & a)&& 11& –& 8(a& –& 8)& & & & & & & & & & & & & c)&& 7a& –& 9(8& –& 3a)& & & & & & & & & & & & & & e)&& 7(4b& –& 3)& –& 9(2b& –& 5)& & & & & & & & & & & & & & & & ! & & & & & & & & & b)&& 3a& +& 4(a& –& 3)& & & d)&& 4(b& +& 6)& +& 5(b& +& 3)& & & & f)&& c(b& +& 9)& –& b(4c& +& 3b)& & & 17& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & 6.! Expand& and& simplify:& & a)&&(i + 7)(i + 4)& & & & & & & & & & d)&(i − 7)4 & & &&&&&&& & & & & & & & & & g)&(12 − 5i)(6i + 7)& & & & & & & & & & & & & & & & &&&& & b)&(i + 8)(i − 9)&& & & c)&(i − 6)(i − 12)& & & e)&(3i + 8)(2i + 7)& & & f)& (9i − 7)(5i + 11)& & h)&(4i + 9)(4i − 9)&& &&&&&& & & & ! ! ! & 18& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & 7.! Solve& the& following& by& using& the& GDC:& & &&&&&&&&& a)&&2i 4 + 15i + 7 = 0& & & & & & & & & & & & & & & & & &&&&&&&&& c)&5i 4 − 8i − 21 = 0& & &&&&&&&&&&&&&&&&&&& & & & & & & & & & & & & & #########e)& 3i 4 + 16i − 64 = 07&& & &&&&&&&&&&&&&&&&&&& & & & & & & & & & & & & & & & & & & b)&3i 4 + 13i + 12 = 0& &&&&&&&&&&&&&&&&& d)&2i 4 − 13i + 21 = 0& f)&4i 4 + 16i + 15 = 0& & 19& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & Functions! & 8.! Simultaneous& Equations:& You& must& show& your& working& clearly.& & a)! &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& b)& & & & & & & & & & & & & & & & & & & & & & & & & &&&&&& c)& & & & & & & & & & & & & & & & & & & 20& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & Graphing! & & 9.! M& is& the& point& (−2,& 4)& and& N& is& the& point& (6,& −8).&&& & ! a&& Find& the& coordinates& of& the& midpoint& of& the& line& MN.& & & & & & & & ! b&& Find& the& gradient& of& the& line& MN.& ! ! ! ! ! ! ! ! ! ! ! ! c&& Find& the& equation& of& this& line.& ! ! ! ! ! ! ! ! ! ! d&& Another& line& PQ& is& parallel& to& MN& and& passes& through& the& point& (1,& 5).& &&&& & Find& the& equation& of& PQ.& & & & & & & & & & & & & & 21& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & & ! d&& Another& line& RS& is& perpendicular& to& MN& and& passes& through& the& point& (1,& 5).& &&&& & Find& the& equation& of& RS.& & & & & & & & & & & & & & & & & & & & & 10.!The& point& A& (−3,& 5)& and& the& point& B& (1,& −15)& lie& on& the& line& L.&& a. ! Find& the& equation& of& the& line& L.&& b. ! Find& the& distance& between& A#and& B.& & & & & & & & & & & & & 22& Revision& for& Math& Studies& SL& Foundations& of& Algebra& & 11.!A& line& has& equation& 6x+2y+9=0&& (a)& Find& the& gradient& of& the& line.&& (b)& Find& where& the& line& crosses& the& y]axis&& & & & & & & & & 12.!What& is& the& slope,& x]intercept,& and& y]intercept& of& the& equation& 5i − 4k = 8& ?& & & & & & & & & & & & & & & 23& Revision& for& Math& Studies& SL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & SECTION!3:!The!Art!of!Geometry!and!Trigonometry! & 1.! Find& the& missing& angles.& a& =& b& =& c& =& d& =& e& =& f& =& g& =& & & & & & 24& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 2.! & & & & & & & & & & & & & & & & & & & & & & 3.! Find& the& perimeter& and& area& of& the& following& shape.& & & & & & & & & & & & & & & & & & & & & & 25& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & & 4.! Find& the& volume& and& surface& area& of& the& following&shape. & & & & & & & & & & & & & & & & & & & & & & & & 5.! Calculate& the& height& of& a& closed& cylinder& with& a& volume& of& 250& cm3& and& a& radius& of& 5. 5& cm.& Find& the& surface& area& of& the& cylinder.& & & & & & & & & & & & & & & & & & & & & & 26& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & & 6.! && & & & & & & & & & & & & & & & & & & & & & & & & & & & & 7.! & & & & & & & & & & & & & & & & & & 27& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 8.! &&&&& & & & & & & & & & & & & & & & & & & & & & & & 9.! &&&&&& & & & & & & & & & & & & & & & & & & & & & & & & (a)! …………………………………& & (b)!………………………………. ..& & 28& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & & 10.!&&&& & & & & & & & & & & & & & & & & & & & & & & & & & 11.!&&&&&& & & & & & & & & & & & & & & & & & & & & & & & 29& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & & SECTION!4:!The!Truth!about!Statistics!and!Probability! ! 1.! &&&& & & & & & & & & & & & & & & & & & & & & & & & a)& & & & b)& & & 30& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 2.! & & && & & & & & & & & & & & & & & & & & & & & & & & (b)& i)& Median:& …………………. & &&&&&&ii)& IQR& …………………………& & (c)& ………………………………………………………. . …& ………………………………………………………………. & ………………………………………………………………. . & ………………………………………………………………. & ………………………………………………………………. . & (d)& Median:& …………………………& & 31& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 3.! Bob asked each of 40 friends how many minutes they took to get to work. The table shows some information about his results. & & & & & & & & & (a)! Work out an estimate for the mean time taken. (b)!State the modal class interval. (c)! Find the group containing the median. & & & & & & 32& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 4.! & & & & & & & & & & & & & & & & 5.! & & & & & & & & & & & & & & & & 33& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 6.! &&&& & & & & & & & & & & & & & & & & & & & & & & & & & & (a)! Median:& ………………………. & & & (b)& IQR:& ………………………………& 7.! 20 students scored goals for the school hockey team last month. The table gives information about the number of goals they scored. (a) Write down the modal number of goals scored. (b) Work out the range of the number of goals scored. (c) Work out the mean number of goals scored. & & & (a)! Modal& Number:& ……………. . & & (a)! Range:& …………………. ………. & & (b)& Mean:& ……………………………& & & 34& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 8.! The& table& gives& information& about& the& heights,& h&metres,& of& trees& in& a& wood.&& & Draw& a& histogram& to& show& this& information.&& & & & & 35& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 9.! The& scatter& graph& shows& information& about& 10& apartments& in& a& city.& The& graph& shows& the& distance& from& the& city& centre& and& the& monthly& rent& of& each& apartment.&& & & & & & & & & & & & & The& table& shows& the& distance& from& the& city& centre&and& the& monthly& rent& for& two& other& apartments.&& & & (a)! On& the& scatter& graph,& plot& the& information& from& the& table.& (b)!Describe& the& relationship& between& the& distance& from& the& city& centre& and& the& monthly& rent.&& & & .....................................................................................................................................................& .....................................................................................................................................................&& & An& apartment& is& 2. 8& km& from& the& city& centre.& (c)& Find& an& estimate& for& the& monthly& rent& for& this& apartment.&& & & & & & 36& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 11.!This frequency table gives information about the ages of 60 teachers. & (a)! Complete the cumulative frequency table. & (b)!On the grid opposite, draw a cumulative frequency graph for this information. (c)! Use your cumulative frequency graph to find an estimate for the median age. & ........................... years (d)!Use your cumulative frequency graph to find an estimate for the number of teachers older than 55 years. & & & & & & & & & & & & & & & & & & & 37& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & & & & & & 38& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 12.!Emily& has& a& bag& of& 20& fruit& flavour& sweets.&& 7& of& the& sweets& are& strawberry& flavour,&& 11& are& lime& flavour,& 2& are& lemon& flavour.&& Emily& takes& at& random& a& sweet& from& the& bag.& Write& down& the& probability& that& Emily&& (a)&& takes& a& strawberry& flavour& sweet,&& (b)&& does& not& take& a& lime& flavour& sweet,&& (c)&& takes& an& orange& flavour& sweet.&& & & (a)! ……………………………………. . & & (b)!………. .. …………………. ………. & & (c)& ………………………………………& & & 39& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 13.!Hannah is going to play one badminton match and one tennis match. The probability that she will l win the badminton match is mn. 4 The probability that she will win the tennis match is h . (a) Complete the probability tree diagram. & & & (b) Work out the probability that Hannah will win both matches. & & & & & & & & (c) Work out the probability that Hannah will win only one match. & & & & 40& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 14.!& & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & (a)! ……………………………………………. . & & & (b)& ……………………………………………. . & & & (c)& ………………………………………………& & 41& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 15.!& & & & & & & & & & & & & & & & & & & & & & & & & & & & & & 16.!& & & & & & & & & & & & & & & & (b)!……………………………………………. . & & & (b)& ……………………………………………. . & & & (c)& ………………………………………………& & (a)! ……………………………………………. . & & & (b)& ……………………………………………. . & & & & & 42& Ticket& to& IB& Mathematics& HL& ADDITIONAL& CONTENT& FOR& HIGHER& LEVEL& MATHEMATICS& & 17.!Adam& and& Boris& regularly& play& each& other& at& chess&and& in& 60%& of& their& games& each& player& is& subject& to& a& time& limit.& Adam& wins& 45%& of& the& games& played& with& a& time& limit& but& only& 30%& of& the& games& played& without& a& time& limit.&& & (a)! Find& the& probability& that& Adam& wins& his& next& game& of& chess& against& Boris.& & & (b)& Given& that& Adam& wins& a& game,& find& the& probability& that& it& was& played& with& a& time& limit.& & & & & (a)! ……………………………………………. . & & & (b)& ……………………………………………. . & & & & & 43& Ticket& to& IB& Mathematics& HL&