A's income is 25% more than B's. B's expenditure is 40% less than A's. If A saves 20% of his income, what percent does B save? MCQ with Answer and Explanation

Question

A's income is 25% more than B's. B's expenditure is 40% less than A's. If A saves 20% of his income, what percent does B save?

A. 40%

B. 35%

C. 30%

D. 45%

Answer: Option A

Solution (By JKSSB Mock Tests)

Let B inc=100, A=125. A sav=25, A exp=100. B exp=0.6×100=60, B sav=100-60=40, i.e. 40%.

This question belongs to: Maths Percentage

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Question #1

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If the price of a commodity decreases by 10%, by what percentage can the consumption increase so that the expenditure remains the same?

A. 11.11%

B. 9.09%

C. 10%

D. 12.5%

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Correct Answer: Option A

Explanation:
Required increase = (10 / 90) * 100 = 100 / 9 = 11.11%.

This question belongs to: Maths Percentage

Question #2

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Fresh fruit has 68% water, dry fruit 20% water. Dry fruit from 100 kg fresh fruit:

A. 40 kg

B. 50 kg

C. 60 kg

D. 32 kg

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Correct Answer: Option A

Explanation:
Dry matter in fresh = 32 kg, in dry fruit 80% is dry matter, weight = 32/0.8 = 40 kg.

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Question #3

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In 60 L of milk-water mixture, water is 10%. How much water must be added to make water 25%?

A. 8 L

B. 12 L

C. 10 L

D. 6 L

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Correct Answer: Option B

Explanation:
Water = 6 L, milk = 54 L. For water 25%, milk 75%, total = 54/0.75 = 72 L, add 12 L.

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