12 men can complete a piece of work in 36 days. In how many days will 18 men complete the same work? MCQ with Answer and Explanation
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Question #1
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A can complete a work in 13 days and B in 28 days. If they work together, the work will be completed in:
Correct Answer: Option B
Explanation:
Combined rate = 1/13 + 1/28. Required time = 8.88 days.
Combined rate = 1/13 + 1/28. Required time = 8.88 days.
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 34 days. After working together for 5 days, what percentage of work remains?
Correct Answer: Option B
Explanation:
Remaining work = (1 - 5*(1/17+1/34))×100 = 55.88%.
Remaining work = (1 - 5*(1/17+1/34))×100 = 55.88%.
This question belongs to:
Maths
Time and Work
Question #3
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A can complete a work in 19 days and B can complete the same work in 24 days. If they work together, in how many days will the work be completed?
Correct Answer: Option C
Explanation:
Combined rate = 1/19 + 1/24. Time = 1 ÷ combined rate = 10.6 days.
Combined rate = 1/19 + 1/24. Time = 1 ÷ combined rate = 10.6 days.
This question belongs to:
Maths
Time and Work
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