The price of sugar increases by 20%. By what percentage should a household reduce its consumption so that the overall expenditure remains the same? MCQ with Answer and Explanation

Question

The price of sugar increases by 20%. By what percentage should a household reduce its consumption so that the overall expenditure remains the same?

A. 25%

B. 16.67%

C. 18%

D. 20%

Answer: Option B

Solution (By JKSSB Mock Tests)

Let original price = 100 and consumption = 100. New price = 120. Required consumption for same expenditure = (100 * 100) / 120 = 83.33. Reduction = 100 - 83.33 = 16.67%.

This question belongs to: Maths Percentage

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Question #1

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A's salary is 20% less than B's salary. By what percent is B's salary more than A's?

A. 27.5%

B. 22.5%

C. 20%

D. 25%

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Correct Answer: Option D

Explanation:
Let B=100, A=80. B is (20/80)×100 = 25% more than A.

This question belongs to: Maths Percentage

Question #2

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A man spends 30% of income on rent, 25% of remainder on food, 20% of remainder on education, saves Rs. 12600. Income:

A. 28000

B. 25000

C. 30000

D. 32000

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Correct Answer: Option C

Explanation:
Rent 0.3I, left 0.7I. Food 0.175I, left 0.525I. Education 0.105I, left 0.42I = 12600 → I = 30000.

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Question #3

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Sold watch at 8% loss. If sold for Rs. 104 more, gain 8%. Cost price:

A. 625

B. 650

C. 675

D. 600

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Correct Answer: Option B

Explanation:
CP=x, SP=0.92x. 0.92x+104=1.08x → 0.16x=104 → x=650.

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