Core Skills Numeracy Outcome 2 Interpret straightforward graphical information [INTERMEDIATE 1] © Learning and Teaching Scotland 2004 This publication may be reproduced in whole or in part for educational purposes by educational establishments in Scotland provided that no profit accrues at any stage. ii NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CONTENTS Section 1 Tables 1 Section 2 Further graphs 2.1 Conversion graphs 2.2 Single-line graphs 2.3 Multiple-line graphs 2.4 Distance–time graphs 5 11 15 18 Section 3 Charts 3.1 Bar charts 3.2 Pie charts 21 28 Section 4 Diagrams 4.1 Flow diagrams 4.2 Network diagrams 34 40 Outcome 2 SAQ answers 43 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION iii © Learning and Teaching Scotland 2004 TABLES SECTION 1 Tables All sorts of everyday information can be found displayed in tables: bus and train timetables car adverts in newspapers listing year of manufacture, details of car and price hotel, flight and cost information in holiday brochures, etc. A table is a grid of information, laid out in rows and columns. Rows go across the way. Columns go up and down the way. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 1 © Learning and Teaching Scotland 2004 TABLES Example 1a Here is a typical table from a holiday brochure. Tusan Beach Resort All inclusive code; N425U Twin/ Double 7 nights room 14 nights 1/511/5 12/518/5 MAY 19/521/5 22/526/5 27/53/6 4/615/6 JUNE 16/622/6 23/629/6 30/66/7 JULY 7/713/7 14/720/7 21/718/8 AUGUST 19/828/925/8 1/9 529 709 545 719 559 785 655 909 645 899 599 855 609 865 619 929 685 1009 705 1029 755 1095 795 1109 765 1019 695 939 1st child 7/14 nights 139 139 139 199 199 139 139 139 199 199 239 239 199 199 2nd child 7 nights 14 nights 275 295 275 295 275 295 389 475 389 475 359 439 359 439 359 439 389 475 389 475 415 499 415 499 389 475 389 475 Example 1b From the table in Example 1a, find out: (a) (b) (c) the name of the resort the two possible lengths of holiday the resort code number. Solution (a) (b) (c) Tusan Beach Resort 7 nights or 14 nights N425U Finding information from a table usually means linking up a row with a column. A row and a column always meet at a specific value. Example 1c Look at the table in Example 1a again. All prices are per person. Suppose we want to rent a double room for 14 nights from 24 May. We can find the cost per person by linking a row and a column. 2 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 TABLES Solution First, locate the correct row – the 14 nights row. (The second row of prices.) Then, locate the correct column : 22/5–26/5 includes our departure date of 24 May. (The fourth column of the table.) Run one of your fingers along the second row and another down the fourth column. They meet at ‘909’. The price per person is £909. Example 1d In the same way, find the price per person for a 7-night holiday departing on 20 August. Solution £765 per person. Example 1e Calculate the cost of a holiday at the Tusan Beach Resort for two adults and two children. They too want a 7-night holiday departing on 20 August. Solution Price per person Ist child 2nd child = £765 = £199 = £389 Cost of holiday = 765 765 199 389 £2118 (Remember to include 765 twice as there are two adults.) Total cost of holiday = £2118. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 3 © Learning and Teaching Scotland 2004 TABLES Questions 1 Village Resort Self-catering Code: G12/574 Studio (2 adults sharing) Studio (3 adults sharing) 1 bedroom (4 adults sharing) 2 bedrooms (4 adults sharing) 2 bedrooms (5 adults sharing) 3 bedrooms (6 adults sharing) 1st child 2nd child 7 nights 14 nights 7 nights 14 nights 7 nights 14 nights 7 nights 14 nights 7 nights 14 nights 7 nights 14 nights 7/14 nights 714 nights 16/521/5 399 529 379 469 389 495 389 505 389 479 399 505 119 239 MAY 22/526/5 499 575 459 515 475 539 479 549 469 519 485 549 149 299 27/53/6 355 429 335 385 345 409 349 415 345 389 355 409 119 239 4/612/6 369 445 349 399 359 419 359 429 359 409 389 429 119 239 JUN 13/619/6 389 465 369 425 379 445 385 449 379 429 389 449 119 239 20/629/6 425 499 405 455 415 475 419 479 415 465 425 485 119 239 30/610/7 439 539 415 489 425 509 429 519 425 495 435 519 119 239 JUL 11/717/7 509 649 475 569 489 605 499 619 485 575 499 609 119 239 18/718/8 545 679 499 595 519 635 529 645 509 605 529 639 149 299 18/825/8 528 645 485 569 505 599 509 615 495 569 515 605 149 299 AUG 26/81/9 495 569 459 515 479 539 485 549 455 505 469 529 119 239 In this exercise you will have to take great care locating the correct row. The rows depend on 7- or 14-night holidays. They also depend on both the type of accommodation and the number of adults sharing. 1. Find the price per person in each of the following: (a) (b) (c) (d) 2. adults adults adults adults sharing sharing sharing sharing 2 3 a a bedrooms for 14 nights departing 15 June bedrooms for 7 nights departing 1 September studio for 7 nights departing 10 July studio for 14 nights departing 20 August Find the total cost of the following holidays: (a) (b) 4 5 6 2 3 4 adults sharing 2 bedrooms for 7 nights departing 15 July 2 adults and 4 children sharing 3 bedrooms for 14 nights departing 22 August. (Children count as adults when locating correct row. 3rd and 4th children cost same as 2nd child.) NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 2/98/9 439 515 419 469 429 499 435 499 445 495 455 515 119 239 FURTHER GRAPHS SECTION 2 2.1 Conversion graphs These are the most straightforward of all graphs. For example, they show conversion between different currencies. They also show direct relationships between items bought and price paid. A convers ion graph is a single straight line. This graph shows the conversion between pounds Sterling and Danish kroner. From the three marked points on the graph we can tell that : £1 = 10 kr, £4 = 40 kr, 55 kr = £5.50 Can you work out the value of (a) £3.50 (b) 60 kr? Solution (a) 35 kr (b) £6.00 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 5 © Learning and Teaching Scotland 2004 FURTHER GRAPHS Example 2.1b This is a very similar graph, but the squares are smaller. This makes the graph a little harder to read, but it allows us to read more detail from it. (a) (b) (c) How many pesos do you get for £4? How many pesos do you get for £2? How many pesos do you get for £1? If this is hard to read from the graph, work it out from question (b). Solution (a) 60 pesos 6 (b) 30 pesos (c) 15 pesos NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 FURTHER GRAPHS Example 2.1b Look at the previous graph. How many pounds (£) are worth (a) 150 pesos (b) 120 pesos? Solution (a) £10 (b) £8 Look at the £/pesos graph again. Along the horizontal scale (£) five small boxes make £2. So each box (or ‘division’) is worth 40p (5 x 40p = £2). On the vertical scale (pesos) four divisions make 20 pesos. So each division is worth 5 pesos. Using the information we can work out that £2.40 = 36 pesos £3.20 = 48 pesos £5.60 = 84 pesos Check this on the graph. Similarly, 35 pesos = £2.33 65 pesos = £4.40 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 7 © Learning and Teaching Scotland 2004 FURTHER GRAPHS Questions 2.1 1. How many Saudi Arabian riyals do you get for (a) £1 (b) £2 8 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 (c) £8 (d) £12? FURTHER GRAPHS 2. The ready reckoner graph shows the cost of buying sugar. (a) (b) (c) What is the cost for 1 kg of sugar (1000 g)? What does one division on the horizontal scale represent? What does one division on the vertical scale represent? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 9 © Learning and Teaching Scotland 2004 FURTHER GRAPHS (d) Find the cost of (i) (ii) (e) How much sugar can be bought for (i) (ii) 10 600 g of sugar 100 g of sugar 16p 56p NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 FURTHER GRAPHS 2.2 Single-line graphs Line graphs are used to display all sorts of informat ion. a patient’s temperature hours of sunshine at a resort the performance of the stock market sales figures in a company. A line graph displays information about one commodity. A line graph shows changes in that commodity over time. Using our skills in reading scales we can answer questions from graphs. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 11 © Learning and Teaching Scotland 2004 FURTHER GRAPHS Example 2.2a (a) (b) (c) (d) (e) (f) (g) What does one division represent on the vertical scale? What were the sales figures for ice-creams in July? Which month had the lowest sales? What was the sales figure in that month? In which months were sales at least 10,000? Why do you think they were so high then? Between which two months was the greatest slump in ice-cream sales? Solution (a) (b) (c) (d) (e) (f) (g) 500 12,000 February 500 July, August and September They are holiday months or summer weather October and November 12 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 FURTHER GRAPHS Questions 2.2 The graph shows the average monthly temperature in degrees Celsius in New York. 1. 2. Which is the hottest month of the year? In which months is the average temperature below freezing point? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 13 © Learning and Teaching Scotland 2004 FURTHER GRAPHS 3. 4. Which two months have the same average monthly temperatures? What is the difference in the average monthly temperature between (a) (b) (c) March and October July and November February and March? 5. Which is the coldest month of the year? 14 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 FURTHER GRAPHS 2.3 Multiple-line graphs Two or more graphs can be shown on the same diagram. This allows us to make comparisons between the two. (a) (b) (c) (d) (e) (f) How many incidents were there in August in each shop? In which month did shop A have its fewest incidents? In which month did shop B have its fewest incidents? Which shop reported the greatest number of incidents in one month? Which month was this? In which month did both shops report the same number of incidents? How many incidents? Overall, which shop had fewer shoplifting incidents? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 15 © Learning and Teaching Scotland 2004 FURTHER GRAPHS Solutions (a) (b) (c) (d) (e) (f) Shop A – 14; shop B – 9 April May Shop A; December March; 9 incidents Number of incidents by month was Shop A – 12 + 8 + 9 + 3 + 4 + 6 + 6 + 14 + 12 + 10 + 11 + 19 = 114 Shop B – 10 + 10 + 9 + 8 + 2 + 4 + 8 + 9 + 11 + 12 + 9 + 11 = 103 Therefore Shop B reported fewer incidents overall. A trend in a graph describes broadly how a graph behaves. Trends are either upwards, downwards or steady. Look at the graph for shop B in Example 2.3a. Between May and December it has an upward trend, even though there is a dip at November. Example 2.3b In the graph for shop A in Example 2.3a, describe the trend between January and April. Solution Downwards. 16 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 FURTHER GRAPHS 1. 2. 3. 4. 5. What was the sales figure for shop B on Monday? What was the sales figure for shop A on Tuesday? Explain the sales figure for shop A on Sunday? What was the sales figure for shop A on Friday? How much more was the sales figure for shop A on Friday than shop B? 6. On which day did shop A’s sales figure first exceed shop B’s? 7. Describe the trend of the graph for shop B. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 17 © Learning and Teaching Scotland 2004 FURTHER GRAPHS 2.4 Distance–time graphs This section overlaps a little with basic work in the Intermediate 2 Unit. A distance–time graph is a special line graph where the distance travelled is plotted on the vertical axis and the time taken is plotted on th e horizontal axis. Various points on the graph are labelled A, B, etc. for reference. Example 2.4a The graph below charts the progress of a group of walkers from Broughty Ferry to Arbroath. Discuss some of the features of the graph. Solution Here is a discussion of some of the features of the graph. The vertical axis label tells you that the distance is measured from Broughty Ferry. The point A shows that the walkers are starting at 7 a.m. It also shows that they are 0 km from Broughty Ferry, i.e. they are at Broughty Ferry. 18 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 FURTHER GRAPHS The point B shows they have reached a point 5 km from the start by 8 a.m. The line BC is horizontal. This means that the distance from Broughty Ferry is not changing, so they aren’t going anywhere; perhaps they are having a rest. At any rate, they’re standing still. This rest lasts for 1 interval on the horizontal axis. Since 2 intervals equal half an hour, one interval represents 15 minutes. Then, at 8.15 a.m., they set off again. Their next rest (points D to E) lasts from 9.30 to 10 a.m., and they are 10 km from the start at that time. Clearly, point F represents Arbroath. Once there, they wait 15 minutes, then they arrive back at point H, distance 0 (i.e. Broughty Ferry) by 11.37 or so, so presumably they returned by bus (?). We can compare average speeds roughly by looking at the slope (or gradient) of the line. GH has the steepest slope so represents the fastest speed, CD has the least slope so represents the slowest speed. In fact, if you look carefully at the graph, CD and EF both have the same slope, but AB is marginally steeper, showing a slightly higher average speed between those two points. On a distance–time graph, the slope of the line shows speed zero speed is represented by a horizontal line the steeper the slope, the faster the speed the journey home is represented by a downward sloping line (when you read from left to right). NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 19 © Learning and Teaching Scotland 2004 FURTHER GRAPHS Questions 2.4 The following graph shows the progress of a cyclist and a motorist from Ayton to Seaton which is 60 kilometres away. Both travelled along exactly the same roads. Key Cyclist Motorist (a) (b) (c) (d) (e) (f) 20 At what time does the cyclist leave Ayton? Does the cyclist actually arrive at Seaton in the time scale shown on the graph? At what time is the cyclist 25 km from Ayton? How far from Seaton is the cyclist at 4 pm? How often did the motorist meet the cyclist on the road? When was the motorist’s fastest part of the journey? Going or coming back? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS SECTION 3 We will consider two types of charts – bar charts and pie charts. ‘Chart’ is really just an alternative name for ‘graph’. You will often find bar charts, for example, referred to as bar graphs. There is no difference. 3.1 Bar charts Here is a chart we met in Outcome 1. Hours of sunshine per day Hours 10 5 0 June July Aug Months Sept It is important that we can interpret information presented in a chart. Here are some of the pieces of information that we can take from the chart above: The data (information) was recorded during four months July had the most sunshine (11 hours per day on average) June and August had the same average number of hours of sunshine September had the lowest (only 6 hours), presumably because it is into the autumn. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 21 © Learning and Teaching Scotland 2004 CHARTS When presented with information in a bar chart, always check out the following: Read the title Look at the label on the bottom axis (e.g. ‘months’) and check all the information along that axis (e.g. all 12 months shown, or only some) Look at the heights of the bars – read off their values from the side Look for similarities (any the same height?) and differences (tallest, shortest, even one with ‘no’ height – shows up as a gap). 22 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS Example 3.1a Answer these questions based on the following bar chart: Traffic survey – Doctor’s surgery car park 10 9 8 Number of vehicles 7 6 5 4 3 2 Volkswagen Rolls Royce Peugeot Land Rover Nissan Vauxhall Ford Toyota 1 Make of vehicle (a) (b) (c) (d) (e) (f) Where did the traffic survey take place? How many different makes of car were there? Which makes had an equal number of cars in the car park? How many Toyotas were there? How many more Volkswagens than Nissans were there? How many vehicles were counted altogether? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 23 © Learning and Teaching Scotland 2004 CHARTS Solution (a) (b) (c) (d) (e) (f) Doctor’s surgery car park 8 Vauxhall and Peugeot 4 2 40 Example 3.1b Sales figure for the year 40 £000s 30 20 Cormack Forbes Hepburn Smith Henderson McFarlane Gray Scott 10 Sales rep This bar chart is slightly trickier to read. You will have to estimate the sales figures from the scale at the side. For example, the figure for Scott is £17,000. 24 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS (a) (b) (c) (d) (e) How many sales reps were there? Who sold the most? How much? Which reps sold the same amount? How much? How much more were Henderson’s sales than McFarlane’s? What was the difference in sales between the rep who sold the most and the rep who sold the least? Solution (a) (b) (c) (d) (e) 8 Smith; £34,000 Gray and Cormack; £30,000 £1,000 £34,000 – £15,000 = £19,000 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 25 © Learning and Teaching Scotland 2004 CHARTS Questions 3.1 1. This bar chart shows the diameters (to the nearest mm) of a sample of tomatoes: Diameters of a sample of tomatoes Number of tomatoes 16 14 12 10 8 6 4 2 0 37 38 39 40 41 42 Diameter (mm) (a) (b) (c) 26 How many tomatoes measure 38 mm (to the nearest mm)? How many tomatoes are in the sample altogether? How many tomatoes in the sample measure 40 mm or more? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS 2. This bar chart shows ice-cream sales over a twelve-month period. 1300 Ice-cream sales 1200 1100 1000 900 Value of sales (£) 800 700 600 500 400 300 200 100 J (a) (b) (c) (d) (e) (f) (g) (h) F M A M J J A S O N D Month During which month were sales highest? During which month were sales lowest? What was the value of sales in October? What was the value of sales in February? Between which months was the trend in sales upwards? What was the decrease in the sales figures from August to September? What was the total sales figure for the summer months (June, July and August)? In which two months were the sales figures the same? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 27 © Learning and Teaching Scotland 2004 CHARTS 3.2 Pie charts Pie charts are so called because they are circular, and so look like a pie. A pie chart represents all the data in any situation. Since the data can not be counted up (as in a bar chart) it is essential that the total of the data is written beside the chart. SNP Labour SNP Con Labour Con Electorate = 18,000 Basic facts The ‘slices’ of the pie are known as ‘sectors’. The larger the sector, the more data is represented in it. The larger the angle at the centre, the more data is represented in the sector made by the angle. There are 360° in a complete turn at the centre of the pie chart. 28 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS Interpreting a pie chart This pie chart shows the share of the votes in an election. We are told that 72,000 votes were cast altogether. However, to find the number of votes cast for each candidate, we need a method. Our method starts with the angle in a sector. Election results Labour Conservative Freedom Independent Liberal Dog Lovers Nationalists Total votes cast = 72,000 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 29 © Learning and Teaching Scotland 2004 CHARTS Data in a sector = total number of data x angle ÷ 360 Example 3.2a In the pie chart above, find the number of votes cast for the Liberal candidate. Solution Votes cast = 72,000 x 50 ÷ 360 = 10,000 Example 3.2b In the same way, calculate the number of votes cast for the Dog Lover candidate. Solution Votes cast = 72,000 x 30 ÷ 360 = 6,000 Example 3.2c Which candidate received the greatest number of votes? How many votes? Solution Looking at the pie chart, we can see that the largest sector is Labour. Its angle is 115°, so 72,000 x 115 ÷ 360 = 23,000 votes. 30 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS Example 3.2d List the candidates in order, from the one with the largest to the one with the smallest vote. State the number of votes received by each. Solution Labour Conservative Liberal Nationalist Dog lovers Independent Communist Freedom 115 x 72,000 ÷ 360 = 23,000 80 x 72,000 ÷ 360 = 16,000 50 x 72,000 ÷ 360 = 10,000 40 x 72,000 ÷ 360 = 8,000 30 x 72,000 ÷ 360 = 6,000 25 x 72,000 ÷ 360 = 5,000 10 x 72,000 ÷ 360 = 2,000 10 x 72,000 ÷ 360 = 2,000 Note that there are two ways we can check our calculations: 1. 2. Add up the votes for each candidate – they should total 72,000. Add up all the angles – they should total 360°. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 31 © Learning and Teaching Scotland 2004 CHARTS Questions 3.2 Results of two housing surveys Semi-detached houses 1800 houses in survey area A Terraced houses Detached houses Flats 1800 houses in survey area B Terraced houses Detached houses 32 Semi-detached houses Flats NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 CHARTS These two pie charts show the results of housing surveys carried out in two areas of the city of Bristol. 1. In survey area A, calculate the number of houses in each group. Arrange the houses according to these numbers, the lowest first. 2. In survey area B, calculate the number of houses in each group. Arrange the houses according to these numbers, the largest first. 3. How many more flats are there in area A than in area B? detached houses are there in area A than in area B? bungalows are there in area A than in area B? 4. How many semi-detached houses are there in the two areas combined? NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 33 © Learning and Teaching Scotland 2004 DIAGRAMS SECTION 4 4.1 Flow diagrams Flow diagrams provide a logical sequence for calculations. They break down calculations into a sequence of individual steps. More complex f low diagrams allow for options along the way. Example 4.1a Changing °Fahrenheit to °Celsius. START Write down °Fahrenheit Subtract 32 Divide by 9 Multiply by 5 Write down answer in °Celsius STOP (a) (b) Change 50°F to °C Change 112°F to °C 34 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 DIAGRAMS Solution (a) 50 – 32 = 18 18 ÷ 9 = 2 2 x 5 = 10 50°F = 10°C (b) 112 – 32 = 80 80 ÷ 9 = 8.888… 8.888… x 5 = 44.444… 112°F = 44.4°C Example 4.1b Calculating a bus fare. START No Is passenger a child? Multiply number of stops for journey by 10p Yes Flat fare 50p STOP Calculate the cost for (a) (b) an adult travelling for 12 stops an child travelling for 8 stops. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 35 © Learning and Teaching Scotland 2004 DIAGRAMS Solution (a) (b) 12 x 10p = £1.20 (following left-hand side of diagram) 50p (following right-hand side of diagram) Example 4.1c Calculating the cost of calling out a plumber. START Basic call-out fee = £40 Yes Does callout last more than 2 hours? No Subtract 2 from number of hours Add on cost of material Multiply by £15 Add on cost of material Total the bill STOP 36 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 DIAGRAMS Calculate the cost of each of the following call-outs. (a) (b) (c) 1½ hours, £25 worth of materials 6 hours, £110 worth of materials ½ hour, no materials. Solution (a) (b) (c) £40 + £25 = £65 £40 + (4 x £15) + £110 = £40 + £60 + £110 = £210 £40 Questions 4.1 1. Use the flow diagram below to calculate the roasting times for these turkeys: (a) (b) 13 lb 18 lb START Multiply weight by 30 minutes Add 30 minutes ÷ 60 Write down answer in hours STOP NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 37 © Learning and Teaching Scotland 2004 DIAGRAMS 2. Use the flow diagram below to calculate the cost of buying floor tiles from the DIY store: (a) (b) 12 tiles 30 tiles START Yes Are more than 20 tiles bought? Multiply number of tiles by £1.15 Multiply number of tiles by £1.35 STOP 38 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 No DIAGRAMS 3. Use the following flow diagram to calculate mileage expenses (£) for: (a) (b) 62 miles 170 miles START Yes Are miles less than 100? No Subtract 100 Multiply by 0.48 Multiply by 0.28 Add £48 STOP NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 39 © Learning and Teaching Scotland 2004 DIAGRAMS 4.2 Network diagrams Network diagrams can also be called schematic maps. They show information in a far more basic form than maps, and they are not drawn to scale. Example 4.2a Distances are in miles Kirriemuir 6 10 12 Meigle Forfar 7 Coupar Angus 12 16 13 16 14 Arbroath Perth 22 Dundee 18 Use the network diagram above to calculate the length of the following journeys: (a) (b) (c) (d) (e) (f) Forfar to Meigle directly Dundee to Arbroath to Forfar Forfar to Perth via Dundee Forfar to Perth via Meigle and Coupar Angus Kirriemuir to Dundee via Meigle Kirriemuir to Dundee via Forfar Solution (a) (b) (c) (d) (e) (f) 12 34 35 31 26 19 miles miles miles miles miles miles 40 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 DIAGRAMS Example 4.2b Perth Distances are in miles 13 Cupar 10 11 Milnathort 13 12 Glenrothes 13 16 St Andrews 9 5 Anstruther Leven 6 13 8 14 Dunfermline Alloa 14 Kirkcaldy Use the network diagram above to answer the following questions: (a) (b) (c) What is the shortest route between St Andrews and Glenrothes? How far is it from Alloa to Glenrothes via Kirkcaldy? Which two towns are 12 miles apart? Solution (a) (b) (c) 18 miles (via Leven) 34 miles Milnathort and Glenrothes. NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 41 © Learning and Teaching Scotland 2004 DIAGRAMS Questions 4.2 Dunbar Edinburgh 23 8 Dalkeith 9 Penicuik 33 6 42 14 27 30 Berwick 14 9 19 27 18 Peebles Galashiels Coldstream Kelso Lanark Use the network diagram to work out the following (distances in miles): (a) (b) (c) (d) John lives in Lanark and works in Dalkeith. Describe his shortest route. How many miles is it? How far is it from Edinburgh to Berwick via Dunbar? How far is it from Edinburgh to Berwick via Dalkeith and Coldstream? Which two towns are 19 miles apart? 42 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 SAQ ANSWERS SAQ ANSWERS Section 1 Answers 1 1. (a) £429 (b) £469 (c) £439 2. (a) (b) £499 x 4 = £1996 605 + 605 + 149 + 299 + 299 + 299 = £2256 (d) £569 Section 2 Answers 2.1 1. (a) (b) (c) (d) 5 10 40 60 2. (a) £1.00 (d) (i) (ii) 60p 10p (e) (i) (ii) 160g 560g (b) 25g (c) 2p NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 43 © Learning and Teaching Scotland 2004 SAQ ANSWERS Answers 2.2 1. 2. 3. 4. 5. July January and February May and October; March and December (a) 14 degrees (b) 16 degrees (c) 6 degrees January Answers 2.3 1. 2. 3. 4. 5. 6. 7. £3000 £2000 0. Shop A was closed on Sunday. £6500 £6500 – £5000 = £1500 Thursday Upwards. Answers 2.4 (a) (b) (c) (d) (e) (f) 1.15 pm No 3 pm 25 km (cyclist has travelled 35 km and has 25 km to go) Twice Going (steeper line) 44 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004 SAQ ANSWERS Section 3 Answers 3.1 1. (a) (b) (c) 7 50 28 2. (a) (b) (c) (d) (e) (f) (g) (h) August March £900 £350 March to August £100 £3300 January and December Answers 3.2 1. Bungalows Detached houses Terraced houses Flats Semi-detached houses 125 250 275 450 700 2. Semi-detached houses Terraced houses Flats Detached houses Bungalows 650 575 300 225 50 3. (a) (b) (c) 4. 1350 150 25 75 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION 45 © Learning and Teaching Scotland 2004 SAQ ANSWERS Section 4 Answers 4.1 1. (a) (b) 7 hrs 9½ hours 2. (a) (b) £16.20 £34.50 3. (a) (b) £29.76 £67.60 Answers 4.2 (a) (b) (c) (d) Lanark Peebles Penicuik Dalkeith 56 miles 64 miles Peebles and Galashiels. 46 NUMERACY: OUTCOME 2 (INTERMEDIATE 1) TEXT VERSION © Learning and Teaching Scotland 2004