25.Bonnie bought a stove for R 3750. After 3 years she had finished paying for it and the R 956,25 interest
that was charged for hire purchase. Determine the rate of simple interest that was charged.
26.A new furniture store has just opened in town and is offering the following special:
Purchase a lounge suite, a bedroom suite and kitchen appliances (fridge, stove, washing machine) for just
R 50 000 and receive a free microwave. No deposit required, 5 year payment plan available. Interest
charged at just 6,5% p.a.
Babelwa purchases all the items on hire purchase. She decides to pay a R 1500 deposit. The store adds
in an insurance premium of R 35,00 per month.
What is Babelwa’s monthly payment on the items?
27.The price of 2 litres of milk is R 17. How much will it cost in 3 years time if the inflation rate is 13% p.a.?28.The price of a 2 l bottle of juice is R 16. How much will the juice cost in 8 years time if the inflation rate
is 7% p.a.?
29.A box of fruity-chews costs R 27 today. How much did it cost 8 years ago if the average rate of inflation
was 10% p.a.? Round your answer to 2 decimal places.
30.A box of smarties costs R 23 today. How much did the same box cost 8 years ago if the average rate of
inflation was 14% p.a.? Round your answer to 2 decimal places.
31.According to the latest census, South Africa currently has a population of 57 000 000.
a)If the annual growth rate is expected to be 0,9%, calculate how many South Africans there will be
in 10 years time (correct to the nearest hundred thousand).
b)If it is found after 10 years that the population has actually increased by 10 million to 67 million,
what was the growth rate?32.The current population of Cape Town is 3 875 190 and the average rate of population growth in South
Africa is 0,4% p.a.
What can city planners expect the population of Cape Town to be in 12 years time?
Note: Round your answer to the nearest integer.
33.The current population of Pretoria is 3 888 420 and the average rate of population growth in South Africa
is 0,7% p.a.
What will the population of Pretoria be in 7 years time?
Note: Round your answer to the nearest integer.
34.Monique wants to buy an iPad that costs £ 140, with the exchange rate currently at £ 1 = R 15. She
estimates that the exchange rate will drop to R 9 in a month.
a)How much will the iPad cost in rands, if she buys it now?
b)How much will she save if the exchange rate drops to R 9?
c)How much will she lose if the exchange rate moves to R 20?
35.Xolile wants to buy a CD player that costs £ 140, with the exchange rate currently at £ 1=R 14. She
estimates that the exchange rate will drop to R 10 in a month.
a)How much will the CD player cost in rands, if she buys it now?
b)How much will she save if the exchange rate drops to R 10?
c)How much will she lose if the exchange rate moves to R 20?
36.Alison is going on holiday to Europe. Her hotel will cost € 200 per night. How much will she need, in
rands, to cover her hotel bill, if the exchange rate is € 1=R 9,20?
37.Jennifer is buying some books online. She finds a publisher in the UK selling the books for £ 16,99.
She then finds the same books from a publisher in the USA for$23,50.
Next she looks up the exchange rates to see which publisher has the better deal. If$ 1 =R 12,43 and
£ 1=R 16,89, which publisher should she buy the books from?
38.Bonani won a trip to see Machu Picchu in Peru followed by a trip to Brazil for the carnival. He is given
R 25 000 to spend while on the trip.
352 9.6. Chapter summary