If the price of wheat increases by 30%, by how much percent must consumption be reduced to keep expenditure constant? MCQ with Answer and Explanation

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If the price of wheat increases by 30%, by how much percent must consumption be reduced to keep expenditure constant?

A. 25%

B. 20%

C. 23.08%

D. 22.5%

Answer: Option C

Solution (By JKSSB Mock Tests)

Reduction % = (30/130)×100 ≈ 23.08%.

This question belongs to: Maths Percentage

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Question #1

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

A. 50%

B. 55%

C. 65%

D. 60%

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Correct Answer: Option D

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

This question belongs to: Maths Percentage

Question #2

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35% of 240 is:

A. 84

B. 78

C. 72

D. 90

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Correct Answer: Option A

Explanation:
0.35 × 240 = 84.

This question belongs to: Maths Percentage

Question #3

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A shopkeeper sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 12 less, he would have gained 30%. Find the cost price.

A. Rs. 200

B. Rs. 150

C. Rs. 220

D. Rs. 180

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Correct Answer: Option A

Explanation:
CP=x, SP=1.1x. New CP=0.8x, new SP=1.1x-12 = 1.3×0.8x = 1.04x → 0.06x=12 → x=200.

This question belongs to: Maths Percentage

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