A can complete a work in 13 days and B in 35 days. If both work together, in how many days will the work be completed? MCQ with Answer and Explanation

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A can complete a work in 13 days and B in 35 days. If both work together, in how many days will the work be completed?

A. 11.98

B. 14.48

C. 16.98

D. 9.48

Answer: Option D

Solution (By JKSSB Mock Tests)

Combined rate = 1/13 + 1/35. Time = 9.48 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 32 days. What percentage of the work will be completed in 7 days?

A. 26.88

B. 21.88

C. 29.38

D. 24.38

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Correct Answer: Option B

Explanation:
Completed percentage = (7/32)×100 = 21.88%.

This question belongs to: Maths Time and Work

Question #2

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

A. 17.09

B. 12.09

C. 14.59

D. 9.59

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Correct Answer: Option D

Explanation:
Combined rate = 1/17 + 1/22. Time = 9.59 days.

This question belongs to: Maths Time and Work

Question #3

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21 men can complete a work in 29 days. If 29 men work at the same rate, how many days are required?

A. 23.5

B. 21.0

C. 28.5

D. 26.0

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Correct Answer: Option B

Explanation:
Total work = 609 man-days. Days = 21.0.

This question belongs to: Maths Time and Work

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