Examstyle Questions: Percentages

a) Work out ^{2}/_{3}; of £4.56.
(2 marks)
b) A travel firm offers a discount of 12% on a holiday costing £490. Work out the amount of the discount.
(2 marks)
c) Three tins of dog food cost £1.38. What will 8 tins of the same dog food cost?
(3 marks)
d) Use your calculator to multiply 450,000 by 800,000.
(1 mark)
(Marks available: 8)
Answer outline and marking scheme for question: 1
a) £3.04
b) £58.80
c) £3.68
d) 3.6 x 10^{11}
(Marks available: 8)

A French supermarket buys coffee for 25.80 francs per kilogram.
a) The supermarket sells the coffee to make a profit of 60%.
Calculate the selling price of one kilogram of coffee.
(3 marks)
b) A British importer also buys the coffee at 25.80 francs per kilogram.
The exchange rate is £1= 9.63 francs.
Caculate the cost of one kilogram of coffee in British money.
Give your answer to an appropriate degree of accuracy.
(3 marks)
(Marks available: 6)
Answer outline and marking scheme for question: 2
a) 41.28 francs
b) £2.68
(Marks available: 8)

An electricity company supplies electricity to a family with the following charges:
Standing charge: 9.13 pence
Electricity used: 6.19 pence per unit
VAT of 5% is added to the total
The green family receives a bill for 91 days. In that time they used a total of 1272 units of electricity. Calculate the amount that the Greens have to pay.
(Marks available: 5)
Answer outline and marking scheme for question: 3
£91.40 or £91.39
(Marks available: 8)

a) Kelly invested £450 for 3 years at a rate of 6% per year compound interest.
Calculate the total amount that the investment is worth at the end of the 3 years.
(3 marks)
b) Kelly decides to buy a television.
After a reduction of 15% in the sale, the one she bought cost her £319.60.
What was the original price of the television?
(3 marks)
(Marks available: 6)
Answer outline and marking scheme for question: 4
a) £535.95 or £535.96
b) £376
(Marks available: 8)