Income of A is 20% more than B. B's expenditure is 30% less than A's. A saves 10% of his income. B saves what % of his income? MCQ with Answer and Explanation

Question

Income of A is 20% more than B. B's expenditure is 30% less than A's. A saves 10% of his income. B saves what % of his income?

A. 26.4%

B. 24.4%

C. 22.4%

D. 28.4%

Answer: Option B

Solution (By JKSSB Mock Tests)

Let B inc = 100, A inc = 120. A sav = 12, A exp = 108. B exp = 70% of 108 = 75.6. B sav = 100-75.6 = 24.4, i.e. 24.4%.

This question belongs to: Maths Percentage

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Question #1

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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. 30000

B. 32000

C. 25000

D. 28000

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Correct Answer: Option A

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 #2

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A number is decreased by 25% and then increased by 25%. The net change is:

A. 6.25% increase

B. 6.25% decrease

C. No change

D. 5% decrease

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Correct Answer: Option B

Explanation:
0.75 × 1.25 = 0.9375, decrease 6.25%.

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Question #3

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In an election, candidate A got 55% votes and B got the rest. If total votes were 2000, how many votes did B get?

A. 1000

B. 800

C. 900

D. 1100

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Correct Answer: Option C

Explanation:
B got (100% - 55%) = 45% of 2000 = 900 votes.

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