Show all working. Marks are shown in brackets. Section A must be completed without a calculator.

Section A: Non-Calculator

1. 1. What is 10% of 840?[1 mark]
2. 2. What is 25% of 320?[1 mark]
3. 3. Increase £250 by 20%.[2 marks]
4. 4. Decrease 450 by 30%.[2 marks]
5. 5. Express 36 as a percentage of 120.[2 marks]
6. 6. A coat costs £48 after a 20% reduction. What was the original price?[3 marks]
7. 7. Convert 3/8 to a percentage.[1 mark]
8. 8. Convert 0.065 to a percentage.[1 mark]
9. 9. A school has 800 pupils. 35% travel by bus. How many travel by bus?[2 marks]
10. 10. A value rises from 60 to 78. Calculate the percentage increase.[2 marks]
11. 11. Write 65% as a fraction in its simplest form.[1 mark]
12. 12. A price falls from £240 to £168. Calculate the percentage decrease.[2 marks]

Section B: Calculator Allowed

13. 13. Calculate 17.5% of £680.[2 marks]
14. 14. After a 12% increase, a salary is £39,200. What was the original salary?[3 marks]
15. 15. A car worth £18,000 depreciates at 15% per year. What is it worth after 2 years?[3 marks]
16. 16. £2,500 is invested at 3% compound interest per year. What is it worth after 4 years?[3 marks]
17. 17. A restaurant bill is £57.50 including a 15% service charge. What was the bill before the service charge?[3 marks]
18. 18. After a 7.5% price rise, a product costs £32.25. What was the original price?[3 marks]
19. 19. A population of 12,000 grows at 2% per year. What is it after 3 years? Give your answer to the nearest whole number.[3 marks]
20. 20. A price increases by 25% and then decreases by 20%. Starting from £400, what is the final price and what is the overall percentage change?[4 marks]
21. 21. A shop buys goods for £240 and sells them for £288. Calculate the percentage profit.[2 marks]
22. 22. Express £1.75 as a percentage of £12.50.[2 marks]
23. 23. A house falls in value by 8% to £230,000. What was the original value?[3 marks]
24. 24. A quantity decreases by 35% each year. Starting at 4,000, what is it after 2 years?[3 marks]
25. 25. A savings account pays 4.5% compound interest per year. How many complete years does it take for £3,000 to exceed £4,000?[4 marks]

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