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. 20%

B. 15%

C. 18%

D. 25%

Answer: Option A

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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Candidate got 35% of valid votes and lost by 2100. 20% votes invalid. Total voters:

A. 8750

B. 10000

C. 8000

D. 9000

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Correct Answer: Option A

Explanation:
Valid votes V, winner 65%V, loser 35%V, margin 30%V=2100 → V=7000. Total T, 0.8T=7000 → T=8750.

This question belongs to: Maths Percentage

Question #2

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A mixture contains 25% alcohol. In 80 litres, amount of alcohol is:

A. 18 L

B. 16 L

C. 22 L

D. 20 L

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Correct Answer: Option D

Explanation:
25% of 80 = 20 litres.

This question belongs to: Maths Percentage

Question #3

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The price of an article is increased by r% and then decreased by r%. If the net decrease is 1%, find r.

A. 10

B. 8

C. 5

D. 12

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Correct Answer: Option A

Explanation:
1 - r²/10000 = 0.99 → r² = 100 → r = 10.

This question belongs to: Maths Percentage

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