9 men can complete a work in 13 days. If 13 men work at the same rate, in how many days will the work be completed? MCQ with Answer and Explanation
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Question #1
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A can complete a work in 22 days and B can complete the same work in 22 days. If they work together, in how many days will the work be completed?
Correct Answer: Option A
Explanation:
Combined rate = 1/22 + 1/22. Time = 1 ÷ combined rate = 11.0 days.
Combined rate = 1/22 + 1/22. Time = 1 ÷ combined rate = 11.0 days.
This question belongs to:
Maths
Time and Work
Question #2
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A can complete a work in 14 days and B in 23 days. If they work together, the work will be completed in:
Correct Answer: Option C
Explanation:
Combined rate = 1/14 + 1/23. Required time = 8.7 days.
Combined rate = 1/14 + 1/23. Required time = 8.7 days.
This question belongs to:
Maths
Time and Work
Question #3
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A can complete a work in 23 days and B can complete the same work in 28 days. If they work together, in how many days will the work be completed?
Correct Answer: Option A
Explanation:
Combined rate = 1/23 + 1/28. Time = 1 ÷ combined rate = 12.63 days.
Combined rate = 1/23 + 1/28. Time = 1 ÷ combined rate = 12.63 days.
This question belongs to:
Maths
Time and Work
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