MATHEMATICAL LITERACY: PAPER I

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1 NATIONAL SENIOR CERTIFICATE EXAMINATION NOVEMBER 2015 MATHEMATICAL LITERACY: PAPER I Time: 3 hours 150 marks PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY 1. This question paper consists of: 12 pages 5 questions Answer Booklet of 4 pages Appendix with 2 Annexures Annexure A Map of Birchwood Annexure B Graph of the Rainfall at Hazelmere Dam Detach the Answer Booklet from the centre of the question paper. Hand it in with your Answer Book. 2. Ensure that your question paper is complete. 3. Answer ALL the questions. 4. Start each question on a new page. 5. Number the answers exactly as the questions are numbered. 6. A non-graphical, non-programmable calculator may be used. 7. ALL necessary calculations must be clearly shown. 8. Units of measurement must be included where applicable. 9. Round off appropriately according to the context unless otherwise stated. 10. It is in your own interest to write legibly and to present your work neatly. 11. Maps and diagrams are not necessarily drawn to scale unless stated otherwise. PLEASE TURN OVER

2 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 2 of 12 QUESTION 1 Thabo and Thandi decide to get married. They want to go to Cairo (Egypt) for their honeymoon. 1.1 Thabo and Thandi are excited about visiting many of the tourist attractions. Table 1 below shows a list of places of interest that they wish to visit along with the entrance fees per person, given in Egyptian pounds (EGP). Table 1: List of places of interest Cairo Attractions Normal Entry Fee in EGP Honeymoon specials in EGP Agricultural Museum 20,00 18,00 Egyptian Antiquities Museum 50,00 45,00 Antiquities Museum Mummies Hall 100,00 90,00 Cairo Museum 30,00 27,00 Entrance to Mummies Room inside the Cairo 100,00 90,00 Museum Islamic Art Museum 30,00 27,00 National Museum of Egyptian Modern Art 20,00 18,00 Pyramids of Giza 50,00 45,00 Entering Pyramid of Khufu 100,00 90,00 Entering Pyramid of Khafre 25,00 22,50 Entering Pyramid of Menkaure 25,00 22,50 Railway Museum 1,50 1,00 Solar Boat Museum 40,00 36,00 Use the above table to answer the following questions: (a) Calculate the normal cost per person of visiting the Antiquities Museum Mummies Hall and the Railway Museum. (2) (b) Determine the total saving that Thabo would make if he and Thandi visited the Antiquities Museum Mummies Hall and the Railway Museum, using the honeymoon special. (4) Of the attractions that they wish to visit, which is the cheapest to enter? (2) Thabo insists that they have to go inside the Mummies Room, which is located inside the Cairo Museum. Determine the total entrance fee for each of them to visit the Mummies Room if they make use of the honeymoon special. (3) 1.2 "Revenues from ancient Egyptian monuments such as the pyramids have fallen by 95% since Egypt's 2011 revolution. Revenues fell from 3 billion Egyptian pounds in 2010 to just 125 million in 2014", Mamdouh el-damty told al-mehwar, a private Egyptian television channel. Determine the difference in revenue between 2010 and (3)

3 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 3 of Thabo and Thandi estimate that they will each need a total of R150 per day spending money. They plan to be in Egypt for 9 days (a) Determine the estimated amount of money (in rand) they will need altogether for their stay. (3) (b) Using the currency rates in Table 2 below, convert this amount to the nearest Egyptian pound. (3) Table 2: Currency Exchange Rates 1 ZAR (South African rand) = 0,09 USD (United States Dollar) 1 EGP (Egyptian pound) = 0,13 USD (United States Dollar) Thabo and Thandi knew three years ago that they would be going on honeymoon, as a result they deposited R5 000 into a fixed deposit account at the beginning of each year for 3 years. An interest rate of 4,1% p.a., compounded annually, was earned. Determine the values of a, b and c. Year Amount in the bank at the start of the year Interest gain over the year at 4,1% Amount in the bank at the end of the year 1 R5 000 R205,00 R5 205,00 2 R10 205,00 R10 623,41 3 R640,56 (6) 1.4 Once Thabo and Thandi arrive at the airport in Egypt, they will have to take a taxi to their hotel. There are three taxi options that they could choose from: Taxi Egypt : Charges a 50 EGP call-out fee and 10 EGP per kilometre Purple Cabs: Charges no call-out fee but 15 EGP per kilometre Maximum Taxis: Charges a set fee of 70 EGP for the first 5 kilometres and an additional 16 EGP per kilometre thereafter Complete the table in the Answer Booklet. (5) A line graph for Taxi Egypt has already been drawn on the grid provided in your Answer Booklet. Now draw line graphs for Purple Cabs and Maximum Taxis on the same grid provided in the Answer Booklet. (7) Indicate with the letter 'A' the point on the graph where Taxi Egypt and Purple Cabs will cost the same. (2) From your graph, determine which taxi option is the better option if the hotel is 8 km away from the airport. (2) [42] PLEASE TURN OVER

4 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 4 of 12 QUESTION 2 Paree has bought herself a house. Unfortunately, three months after moving in, she notices dampness on two of the walls in one of the bedrooms. The dimensions of this bedroom are 6 m 4 m with the walls having a height of 3 m. (See sketch below). Paree is advised to have these walls replastered. * Dampness: the presence of unwanted moisture in the structure of the building. Sketch showing bedroom with affected walls 4m Affected Walls 6m 2.1 Calculate the total surface area of the two walls that need to be replastered. Give your answer in cm 2. (6) 2.2 If the plaster needs to be 2 cm thick on the walls, determine in cm 3 the volume of plaster required to re-plaster these two walls. (2) Volume = Area of wall thickness of plaster 2.3 Paree finds out that the 'ready-mix plaster' is available in bags, each able to plaster cm 3. Determine the number of bags Paree will need to plaster the two walls. (2) 2.4 Paree is advised to choose a recommended brand of ready-mix plaster available at the store. At the store, there are five different brands and Paree forgets the recommended brand name. If she randomly chooses one of the brands, determine the probability that she has chosen the recommended brand. (2) There is a 0,75 probability that the dampness will return if the wrong brand of ready-mix plaster is used. What is the probability that the dampness will not return, having used the incorrect plaster? (2)

5 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 5 of With reference to the number line below, indicate the percentage values for a, b and c. not possible less likely equally likely more likely definite 0% a b c 100% (3) With the use of the number line in Question 2.5.2, suggest which of the 'likelihoods' of probability would best describe the probability for your answer in Question (2) [19] QUESTION 3 Every year, the IEB uses the Birchwood Conference Centre in Boksburg, Johannesburg to host their conference. In Appendix A, you will find a site map of the conference centre. Use it to answer the questions that follow. 3.1 Determine how many entrances lead into the conference centre. (2) 3.2 State which gate is known as the Main Entrance. (2) 3.3 Name the road on which Gate 4 is found. (2) 3.4 State in which compass direction 'tazza caffé' 80 lies from Gate 2. (2) 3.5 The Birchwood Conference Centre has on-site accommodation and has room numbers from 101 to In the block labelled 49 on the map, the room numbers range from Determine the number of rooms found in block 49. (2) Using your ruler, determine (in cm) the length of the road on the map, from point 'A' to point 'B', which is found between Gates 2 and 3. (2) Using the scale on the map, determine the actual length of the road measured in Question Give your answer in metres. (3) PLEASE TURN OVER

6 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 6 of On the day of the conference delegates travelling from Durban (KZN) have the following flight options: Flight Option Departure Arrival A 04:45 am 06:00 am B 05:10 am 06:15 am C 05:30 am 06:40 am D 06:10 am 07: 15 am The Birchwood Conference Centre provides shuttle services from the airport to arrive at the Birchwood Conference Centre by 08:00 am in time for the start of the conference. The times below are those of the three shuttles offered. Shuttle Number Departure time from the Airport 1 06:45 am 2 07:15 am 3 07:50 am How long is the duration of flight D? (2) A delegate arrives on flight C. It takes a delegate 45 minutes to disembark from the plane, collect his luggage and get to the shuttle departure point. Which shuttle number will the delegate need to use? (2) The Shuttle driver gets to the Mercedes Benz in East Rand Mall (grid reference C6 on the map found in the Answer Booklet) and now does not know how to get to Birchwood Conference Centre (Hotel). (a) (b) On the map in your Answer Booklet, highlight or indicate the shortest route from the Mercedes Benz in East Rand Mall to the Birchwood Conference Centre (Birchwood Hotel) entrance found in grid reference H3. (2) Unfortunately, the driver does not have a map, so you need to give him directions. Explain the route he needs to follow. (3) [24]

7 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 7 of 12 QUESTION The following data was provided by Statistics South Africa on electricity production and consumption. Graph Name the type of graph being used above. (2) There are no labels for the axes on Graph 1. Provide suitable labels for the: (a) horizontal axis (b) vertical axis. (4) According to Graph 1, in which year was the most electricity produced? (2) The information alongside this graph indicates that there were gigawatt hours produced in 2014 and that there was a 1,4% decrease. Determine how much electricity was produced in Round your answer to the nearest gigawatt hour. (3) PLEASE TURN OVER

8 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 8 of The graphs shown below, represent the amount of electricity generated and available for distribution. Graph Use the information above to determine the percentage electricity produced that was exported. Round off to two decimal places. (4) Determine how much electricity is to be imported in order to meet the required demands. (4) [19]

9 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 9 of 12 QUESTION The invoice below is that of a municipal account for electricity. Study it and answer the questions that follow: COUNCIL VAT REGISTRATION No TAX INVOICE Mr P. George 12 Penguin Ave Durban 4052 Copy Account Account Number Date of Account 19/06/2015 Reference Account details Amount Balance Brought Forward 2095,09 13/06/2015 Payment Thank you 2095,09 CR E Electricity Account Scale 004 Residential Meter number: From 14/05/2015 to 14/06/ kwh Less Estimated charges from 14/05/2015 to 14/06/ ,93 575,75 CR Estimated amount: From 14/06/2015 to 19/06/2015 VAT Raised on items: IMPORTANT NOTICE Please ensure that dogs are locked away when our meter reader calls at your premises. 192,58 328,83 TOTAL AMOUNT PAYABLE by 15/07/ , Where does Mr George live? (2) Did Mr George pay his account the previous month? Provide evidence for your answer. (2) What do the letters 'CR' in the amount column indicate? (2) Calculate the amount payable before VAT was added. (4) Determine the 14% VAT amount for the answer in Question to confirm that the VAT amount in the invoice is correct. (2) PLEASE TURN OVER

10 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 10 of Municipalities also bill for water. There are several different types of water meters from which the municipality reads the amount of water used by a household Nowadays, water meters are electronic and resemble the one below. Determine the reading on the water meter below in kilolitres, and write this number out in words P. George used 36 kl of water in a particular month. Using the tariff table below, complete the table on the Answer Booklet to determine the total amount payable for the 36 kl of water used. (2) Table 3: Municipality Tariff Structure Water Consumption Volume Charge per kl 6 kl R 0,00 6 kl < 15 kl R 8,35 15 kl < 30 kl R 10,16 30 kl < 45 kl R 12,53 45 kl < 60 kl R 12,98 > 60 kl R 14,34 All tariffs exclude 14% VAT (11)

11 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 11 of Since September 2014, the North Coast of KwaZulu-Natal (KZN) has experienced drought conditions. The level of water in the dams in and around KZN have decreased, especially Hazelmere Dam. Water restrictions are implemented dependent on the fullness of the dam, given as a percentage. The following information in Table 4 reports on the levels of all the dams in KZN province: Table 4: System Dam Capacity Million m 3 Mooi/Mgeni System North Coast System Other (Inland) South Coast System Percentage fullness Outflow (m 3 /s) Rainfall (mm) Last updated on Albert Falls Dam % Feb 2015 Inanda Dam % Feb 2015 Mearns Dam % Feb 2015 Midmar Dam % Feb 2015 Nagle Dam % Feb 2015 Spring Grove % 03 Feb 2015 Hazelmere Dam % Feb 2015 Henley Dam % Feb 2015 Ixopo Dam % Feb 2015 E.J. Smith Dam 0.98 % 03 Feb 2015 Nungwane Dam 2.22 % 03 Feb 2015 Umzinto Dam 0.48 % 03 Feb Identify which dam has the largest capacity and state what that capacity is. (2) Hazelmere Dam has a capacity of 17,9 million cubic metres. Write this number out without the decimal comma and the word million. (2) Hazelmere Dam is 37,3% full. Calculate the number of cubic metres that make up this 37,3%. (3) If the dam is 50% full, there would be less of a water restriction. Determine the amount of water (in m 3 ) in Hazelmere Dam if it were 50% full. (2) Determine, in m 3, how much more water the Hazelmere Dam would need to bring it to 50% of its capacity from its current 37,3%. (2) If a tanker truck can hold 43,9 m 3 of water, how many trucks would it take to fill the Hazelmere Dam to 50% from the current 37,3%? (3) PLEASE TURN OVER

12 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I Page 12 of The graph on Annexure B shows the rainfall at Hazelmere Dam Determine the range of the volume of the rainfall shown on the graph. (2) Calculate the mean rainfall per day over the period indicated (28 October 11 November) on the graph. (5) [46] Total: 150 marks

13 NATIONAL SENIOR CERTIFICATE EXAMINATION NOVEMBER 2015 MATHEMATICAL LITERACY: PAPER I EXAMINATION NUMBER Time: 3 hours 150 marks ANSWER BOOKLET QUESTION Kilometres travelled Taxi Egypt Purple Cabs Maximum Taxis 70 (5) PLEASE TURN OVER

14 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I ANSWER BOOKLET Page 2 of 4 QUESTIONS and Taxi fare in Egypt Cost in Egyptian Pound Distance (km) (9)

15 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I ANSWER BOOKLET Page 3 of 4 QUESTION A B C D E F G H I PLEASE TURN OVER

16 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER I ANSWER BOOKLET Page 4 of 4 QUESTION Municipality Tariff Structure Water Consumption Volume Charge per kl 6 kl R 0,00 6 kl < 15 kl R 8,35 15 kl < 30 kl R 10,16 30 kl < 45 kl R 12,53 45 kl < 60 kl R 12,98 > 60 kl R 14,34 All tariffs exclude 14% VAT Volume Scale Amount used Charge per kl (excl. VAT) 6 kl R 0,00 Total 6 kl < 15 kl R 8,35 15 kl < 30 kl R 10,16 30 kl < 45 kl R 12,53 45 kl < 60 kl R 12,98 > 60 kl R 14,34 Subtotal 14% VAT TOTAL (11)

17 NATIONAL SENIOR CERTIFICATE EXAMINATION NOVEMBER 2015 MATHEMATICAL LITERACY: PAPER II Time: 3 hours 150 marks PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY 1. This question paper consists of: 9 pages 4 questions Answer Sheet of 1 page Appendix with 6 Annexures: Annexure 1 South African Average House Prices Forecast to 2020 Annexure 2 South African House Prices v Total Population Annexure 3 What do South Africans spend their money on? Annexure 4 House Prices in Different Price Categories Annexure 5A Figures 1 and 2 of shelf Annexure 5B Figures 3 and 4 of shelf Annexure Tourist Class Train Routes, Schedules and Fares Detach the Appendix Booklet from the centre of the question paper. Hand in your Answer Sheet with your Answer Book. Ensure that your question paper is complete. 2. Answer ALL the questions. 3. Please start each of the four questions on a new page. 4. Number the answers exactly as the questions are numbered. 5. An approved (non-programmable, non-graphical) calculator may be used. 6. ALL necessary calculations must be clearly shown. 7. Units of measurement must be included where applicable. 8. Round off appropriately according to the context, unless otherwise stated. 9. It is in your own interest to write legibly and to present your work neatly. 10. Maps and diagrams are not necessarily drawn to scale, unless stated otherwise. PLEASE TURN OVER

18 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 2 of 9 QUESTION ABSA Bank recorded the average South African house price in 1981 as R50 143,00. By 2010, this average house price had risen to R ,00. Calculate the percentage by which the price of an average house had increased. Round your answer to the nearest whole number. (5) 1.2 The average house price, along with the projected average house price for the first 21 years of this century, is shown on Annexure 1. Refer to the graph on Annexure 1 in order to answer the questions that follow Mary was in Grade 8 in She passed every grade and went on to study at university for 4 years immediately after her Matric year. The year after graduating (passing her course at university), Mary investigated the possibility of buying a house. State both the year and the average price of a house (rounded to the nearest hundred thousand) in that year. (3) Determine which range in house prices is greater: from 2000 to, and including, 2010 or from 2011 to, and including, the projected price of Motivate your answer showing all calculations. (5) Determine the median price of a house from 2005 to, and including, (3) During which year would the value of your house have doubled if you bought a house for the quoted average price in 2004? (2) Calculate the projected mean house price from 2016 to, and including, (4) 1.3 Refer to Annexure 2 in order to answer the questions that follow Annexure 2 shows graphs of the South African population and the average house prices in South Africa. Describe the trends in the average house prices and population figures in South Africa. (2) Write down the approximate projected average house price and the approximate projected population for November (4) The line showing the Average House Price appears to begin at zero. Why? (2)

19 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 3 of Annexure 3 shows a breakdown of how South Africans spend their money according to a survey done between September 2010 and August (a) According to the data given in Annexure 3, 32% of what an average household spends is on housing, water, electricity, gas and other fuels and amounts to R Calculate the amount of their total annual expenditure. (4) (b) If this expenditure group (housing, water, electricity, gas and other fuels) is combined with one other expenditure group, it accounts for almost 45% of a household's annual expenses. State what the other group is. (2) (a) Write down the percentage spent on education to percentage spent on clothing and footwear, as a ratio in its simplest form. (3) (b) Calculate the missing value: For every R1 an average household spends on Education, they spend R... on Clothing and Footwear. (3) 1.5 According to an informal poll done amongst South African families, the amount of money spent on groceries for a family of 3 is R per year. [Source: < The average rate of inflation over the past 3 years has been 5,17% per year. If the average rate of inflation remains the same for the next 3 years, show that a family of 3 can expect to pay more than R5 200 per month for groceries in 3 years' time. Show all working. (8) 1.6 Refer to Annexure 4 to answer the questions that follow. Write down only the missing figure for Questions to in your Answer Book In the year, a house costing R lay on the 95 th percentile. (2) In 1995, a house costing R lay on the percentile. (2) If a house lies on the 80 th percentile, this means that % of the houses cost more than this house. (2) If there were a group of 20 houses in 2005, then it is safe to say that out of those 20 houses (a) house(s) would cost more than R1,2 million and (b) house(s) would cost less than R1,2 million. (4) In 1998, even though he only paid R for his house, Pete bragged to all his friends about living in a really expensive house. By making reference to the percentiles, decide whether Pete had any reason to brag. Explain your answer. (3) [63] PLEASE TURN OVER

20 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 4 of 9 QUESTION 2 Bongani enjoys doing DIY (Do-It-Yourself) Projects. 2.1 Bongani's last successful project was digging a cylindrical hole to secure a trampoline for his children. The hole Bongani dug The dimensions of the hole he dug The finished project

21 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 5 of 9 Although Bongani has reused some of the excavated (dug up) sand, he still has twothirds of the sand left over. A company is prepared to collect the sand free of charge provided it is more than 5 m Calculate the area of the base of the hole in square metres, rounded off to 2 decimal places. Area = 2 π r where r = radius and π = 3,14 (3) Determine, showing all calculations, whether there is enough sand for the company to come and collect free of charge. Volume = Area of base height (5) 2.2 Bongani's latest project is to build a set of shelves. A picture of the shelves he is hoping to build is alongside. (See also Annexure 5A, Figure 1.) The plans for the shelves, along with all of the dimensions (given in inches), are given on Annexures 5A and 5B. 1'' (inch) = 2,54 cm Refer to Figure 2, Annexure 5A. Bongani does not want a shelf that is higher than 1,9 m. Do these shelves meet his requirements? Justify your answer by showing all working. (5) To build the shelves, Bongani will use planks that are 1 m in length and just cut them to the correct size. Calculate the total wood wasted from the 5 planks used to build the bottom shelf. Refer to Figure 3 and Figure 4 found in Annexure 5B The wood that Bongani wants to use for the shelves costs R27,53/m excluding VAT (Value Added Tax) of 14%. According to his calculations, it will cost him less than R1 000 for all the wood, including VAT. By making use of the values given on the Answer Sheet, and by completing the missing values, determine whether Bongani is correct in his calculation. (9) [31] (9) PLEASE TURN OVER

22 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 6 of 9 QUESTION 3 Samantha and Nivaan live in London and are going on holiday to Germany and South Africa. From Frankfurt in Germany, they will land at Cape Town International Airport and, after spending a few days in Cape Town, make their way to Johannesburg. 3.1 When arriving in Cape Town, they need to exchange their remaining euros (from Germany) and some pounds (from England) into South African rands. Calculate the amount of South African rands they will have to spend if they land in Cape Town with 180 euros and 800 British pounds. Use the following exchange rates: 1 euro = R13,56 1 British pound = R17,13 (6) 3.2 The map below shows the direct route, as the crow flies, between Cape Town and Johannesburg. If the distance, as the crow flies, between Cape Town and Johannesburg is km, determine the scale, to the nearest million, of the map in the form of 1:... (5) 3.3 If they drive from Cape Town to Johannesburg, they can expect to drive approximately km in 15.5 hours Determine their average speed for the trip. Round your answer to the nearest whole number. Distance = Speed Time (4) According to the Arrive Alive website, a driver should have a 15-minute break after every 2 hours. If Samantha and Nivaan rest as they should, how long will the journey take them if the originally estimated 15,5 hours did not include the breaks? (6)

23 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 7 of Samantha and Nivaan also consider taking the train from Cape Town to Johannesburg. They will leave Cape Town on a Thursday. The train schedule is shown on Annexure 6. Samantha is not excited to take the train because she says it will take twice as long as the car trip. By calculating the duration of the journey by train, determine whether she is correct. (3) 3.5 If Samantha and Nivaan make their decision to get to Johannesburg (during the month of April) based purely on cost, which method of travel should they use? Justify your answer by showing the cost of each option. The following conditions must be taken into consideration: They can borrow a friend's car but must pay for their own petrol. They will get the car with a full tank of petrol, but Samantha and Nivaan must leave the car with a full tank of petrol in Johannesburg. The average fuel consumption of the car is 5,8 l/100 km. The average price of petrol is R11,07/l. Tolls from Cape Town to Johannesburg total R138,50. (12) [36] QUESTION Isabel is buying a lounge suite and sees the following advertisement: [Source: Highway Mail; House and Home, February 2015] Isabel does not have the cash to purchase the lounge suite so is interested in the payment terms offered by the shop Does the Total Payable amount include the deposit? Substantiate your answer. (4) If Isabel buys this lounge suite on hire purchase, how much extra (in rands) does she end up paying? (4) Name one advantage and one disadvantage of buying an item on hire purchase. (2) PLEASE TURN OVER

24 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 8 of Whilst buying her lounge suite, Isabel has the opportunity to spin a 'Lucky Wheel', and in so doing, she may get a discount on the cost of the lounge suite. The wheel looks as follows: 0% Discount 100% Discount If there are 360 in a circle, determine the probability of Isabel getting a 100% discount for her purchase. Write the probability as a fraction in its simplest form. (4)

25 NATIONAL SENIOR CERTIFICATE: MATHEMATICAL LITERACY: PAPER II Page 9 of (a) As Isabel receives no discount on her first spin, she may spin the wheel again. Which tree diagram below accurately represents her scenario? (2) (b) Isabel has a 50% chance of getting no discount. Determine the probability of Isabel getting no discount on both her spins. (4) [20] Total: 150 marks

26 NATIONAL SENIOR CERTIFICATE EXAMINATION NOVEMBER 2015 MATHEMATICAL LITERACY: PAPER II EXAMINATION NUMBER ANSWER SHEET QUESTION WOOD NEEDED TO BUILD SHELVES Description Quantity Quantity to be purchased Total Uprights R55,06 each R... Upright supports R27,53/m R55,06 Top shelf R27,53/m R137,65 Other shelves R27,53/m R... Shelf support R27,53/m R... TOTAL EXCL. VAT R... 14% R... TOTAL INCL. VAT R... (Circle the correct answer.) Bongani's calculation is correct/incorrect.