A man spends 70% of his income. If his income increases by 20% and his expenditure increases by 10%, what is the percentage increase in his savings? MCQ with Answer and Explanation

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A man spends 70% of his income. If his income increases by 20% and his expenditure increases by 10%, what is the percentage increase in his savings?

A. 45%

B. 13.33%

C. 43.33%

D. 10%

Answer: Option C

Solution (By JKExamLibrary)

Let income = 100, expenditure = 70, savings = 30. New income = 120. New expenditure = 77. New savings = 120 - 77 = 43. Increase in savings = 43 - 30 = 13. Percentage increase = (13 / 30) * 100% = 43.33%.

This question belongs to: Maths Percentage

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If 15 men can complete a work in 20 days, how many men are required to complete the work in 10 days?

A. 32

B. 28

C. 30

D. 25

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Correct Answer: Option C

Explanation:
M1×D1 = M2×D2 → 15×20 = M2×10 → M2 = 30.

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Question #2 Report Error

A student got 360 marks out of 500. Percentage is:

A. 68%

B. 70%

C. 72%

D. 75%

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Correct Answer: Option C

Explanation:
(360/500)×100 = 72%.

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Question #3 Report Error

Candidate got 40% of valid votes and lost by 3000. 25% votes invalid. Total voters:

A. 18000

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C. 20000

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Correct Answer: Option C

Explanation:
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