If the price of sugar rises by 25%, by what percent must consumption be reduced so that expenditure remains the same? MCQ with Answer and Explanation

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If the price of sugar rises by 25%, by what percent must consumption be reduced so that expenditure remains the same?

A. 15%

B. 25%

C. 20%

D. 18%

Answer: Option C

Solution (By JKSSB Mock Tests)

Reduction = (25/125)×100 = 20%.

This question belongs to: Maths Percentage

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Question #1

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If the length of a rectangle is increased by 25% and the breadth is decreased by 20%, what is the percentage change in its perimeter?

A. Cannot be determined

B. 5% increase

C. No change

D. 2.5% increase

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Correct Answer: Option A

Explanation:
Perimeter change depends on the original values of length and breadth, so cannot be determined without them.

This question belongs to: Maths Percentage

Question #2

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To pass an exam, 40% is required. A student got 150 marks and failed by 30 marks. Maximum marks are:

A. 500

B. 400

C. 450

D. 550

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Correct Answer: Option C

Explanation:
Pass marks = 150 + 30 = 180. 40% of Max = 180 → Max = 180/0.4 = 450.

This question belongs to: Maths Percentage

Question #3

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In an election between two candidates, one got 35% of the total valid votes and lost by 1500 votes. Find the total valid votes.

A. 5500

B. 4000

C. 4500

D. 5000

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Correct Answer: Option D

Explanation:
Loser = 35%, Winner = 65%. Difference = 30%. 30% of Total = 1500. Total = 5000.

This question belongs to: Maths Percentage

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