Percentages aptitude

Question 1

The price of sugar rises by 25%. By what percent must a household cut its consumption so that its expenditure on sugar stays the same?

Accepted Answer

20%

Answer

25%

Answer

15%

Answer

22%

Question 2

A's salary is 20% more than B's. By what percent is B's salary less than A's?

Accepted Answer

16⅔%

Answer

20%

Answer

18%

Answer

15%

Question 3

A town's population of 50,000 increases by 10% in one year and then decreases by 10% the next year. What is the population at the end of the second year?

Accepted Answer

49,500

Answer

50,000

Answer

50,500

Answer

49,000

Question 4

A student needs 40% of the maximum marks to pass. He scores 180 marks and fails by 20 marks. What are the maximum marks?

Accepted Answer

500

Answer

450

Answer

480

Answer

550

Question 5

Two successive discounts of 20% and 10% are equivalent to a single discount of:

Accepted Answer

28%

Answer

30%

Answer

27%

Answer

29%

Question 6

If 30% of a number is 72, what is 45% of the same number?

Accepted Answer

108

Answer

96

Answer

112

Answer

120

Question 7

In an election between two candidates, the winner gets 58% of the valid votes and wins by 3,200 votes. How many valid votes were cast?

Accepted Answer

20,000

Answer

16,000

Answer

18,000

Answer

22,000

Question 8

A number is increased by 20% and the result is then decreased by 20%, giving 480. What was the original number?

Accepted Answer

500

Answer

480

Answer

520

Answer

490