A is twice as fast as B and B is thrice as fast as C. If C alone can complete the work in 24 days, in how many days can they together finish the work? MCQ with Answer and Explanation
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Question #1
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A can do a work in 13 days and B in 29 days. In how many days will they complete 75% of the work together?
Correct Answer: Option C
Explanation:
Combined time for full work multiplied by 0.75 = 6.73 days.
Combined time for full work multiplied by 0.75 = 6.73 days.
This question belongs to:
Maths
Time and Work
Question #2
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A can complete a work in 24 days and B in 30 days. If both work together, in how many days will the work be completed?
Correct Answer: Option D
Explanation:
Combined rate = 1/24 + 1/30. Time = 13.33 days.
Combined rate = 1/24 + 1/30. Time = 13.33 days.
This question belongs to:
Maths
Time and Work
Question #3
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8 men can complete a work in 24 days. If 12 men work at the same rate, in how many days will the work be completed?
Correct Answer: Option D
Explanation:
Total work = 8 × 24 = 192 man-days. Required days = 192/12 = 16.0 days.
Total work = 8 × 24 = 192 man-days. Required days = 192/12 = 16.0 days.
This question belongs to:
Maths
Time and Work
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