A can complete a work in 22 days and B can complete the same work in 17 days. If they work together, in how many days will the work be completed? MCQ with Answer and Explanation

Question

A can complete a work in 22 days and B can complete the same work in 17 days. If they work together, in how many days will the work be completed?

A. 9.59

B. 13.59

C. 11.59

D. 15.59

Answer: Option A

Solution (By JKSSB Mock Tests)

Combined rate = 1/22 + 1/17. Time = 1 ÷ combined rate = 9.59 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 30 days and B in 22 days. If both work together, in how many days will the work be completed?

A. 20.19

B. 12.69

C. 15.19

D. 17.69

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Correct Answer: Option B

Explanation:
Combined rate = 1/30 + 1/22. Time = 12.69 days.

This question belongs to: Maths Time and Work

Question #2

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33 men can complete a work in 26 days. If 41 men work at the same rate, how many days are required?

A. 23.43

B. 28.43

C. 20.93

D. 25.93

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Correct Answer: Option C

Explanation:
Total work = 858 man-days. Days = 20.93.

This question belongs to: Maths Time and Work

Question #3

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A can complete a work in 29 days and B in 27 days. If both work together, in how many days will the work be completed?

A. 13.98

B. 16.48

C. 18.98

D. 21.48

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Correct Answer: Option A

Explanation:
Combined rate = 1/29 + 1/27. Time = 13.98 days.

This question belongs to: Maths Time and Work

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