GCE O-Level · Mathematics (4052)

Percentage: Practice Questions

4 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Percentage.

7 questions14 marksFree, no account

Question 1

1 mark

A student scored $ 18 $ out of $ 25 $ in a mathematics test. What is the score expressed as a percentage?

Question 2

1 mark

A rectangular field has its length and width increased by $ 20\% $ and $ 10\% $ respectively. Calculate the percentage increase in the area of the field.

Question 3

1 mark

A sum of money was invested in a bank at a compound interest rate of $ r\% $ per annum, compounded yearly. If the principal amount doubled after 10 years, which of the following expressions represents $ r $?

Question 4

1 mark

The price of a laptop after a $ 15\% $ discount is $ \$1,020 $. Calculate the original price of the laptop before the discount.

Question 5

2 marks

Express $ 45 $ minutes as a percentage of $ 2.5 $ hours.

Write your answer out first, then check it against the worked solution.

Question 6

3 marks

A company's annual profit increased by 15% in 2022 to reach \$460,000. In 2023, the profit then decreased by 10% from the 2022 level. Calculate the total profit the company made in the year 2021.

Write your answer out first, then check it against the worked solution.

Question 7

5 marks

A rectangular plot of land has its length increased by $ 25\% $ and its width decreased by $ 20\% $. Calculate the percentage change in the total area of the land.

Write your answer out first, then check it against the worked solution.

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