Kerosene price up 25%. To keep expenditure same, reduce consumption by: MCQ with Answer and Explanation

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Kerosene price up 25%. To keep expenditure same, reduce consumption by:

A. 15%

B. 25%

C. 18%

D. 20%

Answer: Option D

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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The price of sugar is decreased by 20%. By what percent must a householder increase its consumption so that expenditure does not change?

A. 15%

B. 30%

C. 20%

D. 25%

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Correct Answer: Option D

Explanation:
New price 0.8, consumption multiplier = 1/0.8 = 1.25, increase 25%.

This question belongs to: Maths Percentage

Question #2

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0.75% of 2000 is:

A. 10

B. 15

C. 17.5

D. 12.5

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Correct Answer: Option B

Explanation:
0.0075 × 2000 = 15.

This question belongs to: Maths Percentage

Question #3

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Population 2,00,000. First year +8%, second year -5%. Population after 2 years:

A. 2,05,200

B. 2,06,400

C. 2,07,600

D. 2,08,800

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Correct Answer: Option A

Explanation:
2,00,000 × 1.08 × 0.95 = 2,05,200.

This question belongs to: Maths Percentage

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