A can complete a work in 24 days and B in 29 days. If they work together, the work will be completed in: MCQ with Answer and Explanation

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A can complete a work in 24 days and B in 29 days. If they work together, the work will be completed in:

A. 13.13

B. 28.13

C. 23.13

D. 18.13

Answer: Option A

Solution (By JKSSB Mock Tests)

Combined rate = 1/24 + 1/29. Required time = 13.13 days.

This question belongs to: Maths Time and Work

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Question #1

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A can complete a work in 34 days and B in 38 days. If both work together, in how many days will the work be completed?

A. 17.94

B. 22.94

C. 20.44

D. 25.44

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Correct Answer: Option A

Explanation:
Combined rate = 1/34 + 1/38. Time = 17.94 days.

This question belongs to: Maths Time and Work

Question #2

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A and B work together. A alone can complete the work in 18 days and B alone in 34 days. What percentage of the total daily work is contributed by A?

A. 72.88

B. 67.88

C. 65.38

D. 70.38

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Correct Answer: Option C

Explanation:
A share = (1/18) / (1/18+1/34) ×100 = 65.38%.

This question belongs to: Maths Time and Work

Question #3

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A can complete a work in 20 days and B in 43 days. If both work together, in how many days will the work be completed?

A. 13.65

B. 21.15

C. 18.65

D. 16.15

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Correct Answer: Option A

Explanation:
Combined rate = 1/20 + 1/43. Time = 13.65 days.

This question belongs to: Maths Time and Work

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