A can complete a work in 18 days and B in 39 days. If both work together, 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 15 days and B in 25 days. If both work together, in how many days will the work be completed?
Correct Answer: Option B
Explanation:
Combined rate = 1/15 + 1/25. Time = 9.38 days.
Combined rate = 1/15 + 1/25. Time = 9.38 days.
This question belongs to:
Maths
Time and Work
Question #2
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A can complete a work in 15 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 D
Explanation:
Combined rate = 1/15 + 1/15. Time = 1 รท combined rate = 7.5 days.
Combined rate = 1/15 + 1/15. Time = 1 รท combined rate = 7.5 days.
This question belongs to:
Maths
Time and Work
Question #3
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A can complete a work in 12 days and B in 40 days. If both work together, in how many days will the work be completed?
Correct Answer: Option C
Explanation:
Combined rate = 1/12 + 1/40. Time = 9.23 days.
Combined rate = 1/12 + 1/40. Time = 9.23 days.
This question belongs to:
Maths
Time and Work
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