GRADE: 8 PERCENTAGES CHAPTER: 5

1. Express 3740 as a percentage and as a decimal.

2. Express 800 g as a percentage of 2 kg.3. Express 4500 cm3 as a percentage of 2 litres.4. Find the percentage error if the measured weight is 980 g and the actual weight is 1000 g.5. John is 8 % heavier now than he was two years ago. If he weighed 55 kg then, how much

does he weigh now?6. The price of a car that cost £9000 last year was increased by 7.5 % on 1st January this year.

What is its present price?7. A school employs 120 teachers. Next year they must reduce this number by 15 %. How

many teachers will there be next year?8. What is the increase in cash if Mr.James receives a rise of 7.5 % on his salary of £350?9. Find the purchase price for a calculator marked at £8.70 plus VAT at 16%.10. How much is the income tax due on a taxable income of £24000 if the rate of tax is 32 %.11. Mrs.Khan earns an income of £32000 each year. Her tax free allowances are £5250. How

much tax will she have to pay if the tax rate is 25 % ?12. What would be cash price for a girl’s coat marked at £74.50 in a sale which offers 15 %

discount?

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saf. DEPARTMENT OF MATHEMATICS. 1

ISLAMIA ENGLISH SCHOOL, ABU DHABI.