If the price of oil decreases by 25%, by what percentage can consumption be increased to maintain the same expenditure? MCQ with Answer and Explanation

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If the price of oil decreases by 25%, by what percentage can consumption be increased to maintain the same expenditure?

A. 20%

B. 30%

C. 25%

D. 33.33%

Answer: Option D

Solution (By JKSSB Mock Tests)

Required increase = (25 / 75) * 100 = 100 / 3 = 33.33%.

This question belongs to: Maths Percentage

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Question #1

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A man's salary increased from Rs. 12000 to Rs. 15000. Percentage increase is:

A. 20%

B. 22.5%

C. 27.5%

D. 25%

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Correct Answer: Option D

Explanation:
Increase = 3000, % = (3000/12000)×100 = 25%.

This question belongs to: Maths Percentage

Question #2

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In a city, 55% read newspaper A, 45% read B, 20% read both. % reading exactly one newspaper:

A. 50%

B. 60%

C. 55%

D. 65%

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Correct Answer: Option B

Explanation:
Only A = 55-20=35%, only B=45-20=25%, exactly one = 60%.

This question belongs to: Maths Percentage

Question #3

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A's marks are 20% more than B's and B's marks are 20% less than C's. If A got 120 marks, C's marks are:

A. 110

B. 125

C. 100

D. 120

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Correct Answer: Option B

Explanation:
A=1.2B → B=120/1.2=100. B=0.8C → C=100/0.8=125.

This question belongs to: Maths Percentage

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