If speed decreases by 20%, by what percentage will the time required to cover the same distance increase? MCQ with Answer and Explanation

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If speed decreases by 20%, by what percentage will the time required to cover the same distance increase?

A. 20%

B. 25%

C. 33.33%

D. 30%

Answer: Option B

Solution (By JKSSB Mock Tests)

Time increase = (20 / 80) * 100 = 25%.

This question belongs to: Maths Percentage

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Question #1

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A man gave 30% to wife, 20% of remainder to son, 25% of remainder to daughter, rest Rs. 8400 to charity. Total amount:

A. 18000

B. 20000

C. 22000

D. 24000

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Correct Answer: Option B

Explanation:
Wife 30%, left 70%. Son 14% of total (20% of 70), left 56%. Daughter 25% of 56=14%, left 42% = 8400 → total=20000.

This question belongs to: Maths Percentage

Question #2

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Cost of 20 items = SP of 15 items. Profit %:

A. 30%

B. 40%

C. 25%

D. 33.33%

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Correct Answer: Option D

Explanation:
Profit = (5/15)×100 = 33.33%.

This question belongs to: Maths Percentage

Question #3

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What is 15% of 60?

A. 15

B. 6

C. 9

D. 12

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Correct Answer: Option C

Explanation:
15% of 60 = (15 / 100) * 60 = 9.

This question belongs to: Maths Percentage

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