If 3 men or 5 women can do a piece of work in 12 days, in how many days will 6 men and 5 women 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 24 days and B in 26 days. If they work together, the work will be completed in:
Correct Answer: Option B
Explanation:
Combined rate = 1/24 + 1/26. Required time = 12.48 days.
Combined rate = 1/24 + 1/26. Required time = 12.48 days.
This question belongs to:
Maths
Time and Work
Question #2
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A can complete a work in 10 days and B can complete the same work in 15 days. If they work together, in how many days will the work be completed?
Correct Answer: Option B
Explanation:
Combined rate = 1/10 + 1/15. Time = 1 ÷ combined rate = 6.0 days.
Combined rate = 1/10 + 1/15. Time = 1 ÷ combined rate = 6.0 days.
This question belongs to:
Maths
Time and Work
Question #3
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A is 20% less efficient than B. If A can complete a work in 15 days, in how many days will B complete it?
Correct Answer: Option D
Explanation:
Let efficiency of B = 5, then efficiency of A = 4. Total work = Efficiency of A * Time of A = 4 * 15 = 60 units. Time taken by B = 60 / 5 = 12 days.
Let efficiency of B = 5, then efficiency of A = 4. Total work = Efficiency of A * Time of A = 4 * 15 = 60 units. Time taken by B = 60 / 5 = 12 days.
This question belongs to:
Maths
Time and Work
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