A can do a work in 17 days and B in 17 days. In how many days will they complete 75% of the work together? MCQ with Answer and Explanation

A can do a work in 17 days and B in 17 days. In how many days will they complete 75% of the work together?

A. 6.38

B. 8.88

C. 11.38

D. 13.88

Answer: Option A

Combined time for full work multiplied by 0.75 = 6.38 days.

This question belongs to: Maths Time and Work

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Question #1 Report Error

A can complete a work in 17 days and B in 24 days. If they work together, the work will be completed in:

A. 9.95

B. 19.95

C. 24.95

D. 14.95

Correct Answer: Option A

Explanation:
Combined rate = 1/17 + 1/24. Required time = 9.95 days.

This question belongs to: Maths Time and Work

Question #2 Report Error

A can complete a work in 18 days and B can complete the same work in 23 days. If they work together, in how many days will the work be completed?

A. 16.1

B. 14.1

C. 10.1

D. 12.1

Correct Answer: Option C

Explanation:
Combined rate = 1/18 + 1/23. Time = 1 ÷ combined rate = 10.1 days.

This question belongs to: Maths Time and Work

Question #3 Report Error

A can complete a work in 25 days and B in 18 days. If both work together, in how many days will the work be completed?

A. 15.47

B. 10.47

C. 17.97

D. 12.97

Correct Answer: Option B

Explanation:
Combined rate = 1/25 + 1/18. Time = 10.47 days.

This question belongs to: Maths Time and Work