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

Question

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

A. 20%

B. 25%

C. 30%

D. 15%

Answer: Option A

Solution (By JKSSB Mock Tests)

Required reduction = (R / (100 + R)) * 100. (25 / 125) * 100 = 20%.

This question belongs to: Maths Percentage

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Question #1

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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. 25%

B. 20%

C. 18%

D. 15%

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Correct Answer: Option B

Explanation:
Reduction = (25/125)×100 = 20%.

This question belongs to: Maths Percentage

Question #2

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A man's salary was reduced by 50% and then increased by 50%. Find the net change in his salary.

A. 40% decrease

B. 25% decrease

C. 30% decrease

D. 15% decrease

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Correct Answer: Option B

Explanation:
0.5 × 1.5 = 0.75, 25% decrease.

This question belongs to: Maths Percentage

Question #3

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130% of 130 is:

A. 179

B. 149

C. 169

D. 159

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Correct Answer: Option C

Explanation:
1.3 × 130 = 169.

This question belongs to: Maths Percentage

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