A can complete a work in 16 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 16 days and B in 29 days. If they work together, the work will be completed in:

A. 10.31

B. 25.31

C. 15.31

D. 20.31

Answer: Option A

Solution (By JKSSB Mock Tests)

Combined rate = 1/16 + 1/29. Required time = 10.31 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 24 days and B can complete the same work in 29 days. If they work together, in how many days will the work be completed?

A. 15.13

B. 19.13

C. 17.13

D. 13.13

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Correct Answer: Option D

Explanation:
Combined rate = 1/24 + 1/29. Time = 1 ÷ combined rate = 13.13 days.

This question belongs to: Maths Time and Work

Question #2

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9 men can complete a work in 19 days. If 13 men work at the same rate, in how many days will the work be completed?

A. 15.15

B. 19.15

C. 13.15

D. 17.15

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Correct Answer: Option C

Explanation:
Total work = 9 × 19 = 171 man-days. Required days = 171/13 = 13.15 days.

This question belongs to: Maths Time and Work

Question #3

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A can complete a work in 18 days and B can complete the same work in 18 days. If they work together, in how many days will the work be completed?

A. 11.0

B. 9.0

C. 13.0

D. 15.0

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Correct Answer: Option B

Explanation:
Combined rate = 1/18 + 1/18. Time = 1 ÷ combined rate = 9.0 days.

This question belongs to: Maths Time and Work

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