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A and B can do a piece of work in 12 days, B and C in 15 days and A and C in 20 days. In how many days can each alone do the work?A. 30,20,50B. 30,45,60C. 30,20,60D. 20,30,50 |
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Answer» Correct Answer - C Calculate the work done by (A+B+C) in one day an proceeds. |
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