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A and b together can do a piece of work in 15 days. if a 's one day work is one whole one upon two times the one day's work of b find in how many days can each do the work |
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Answer» A 1 day work = 1 1/2 of B = 3/2 of x = 1.5 x Their 1 day work together is, 1/1.5x + 1/x = 1/15 (1 + 1.5) / 1.5x = 1/15 2.5/1.5x = 1/15 5/3x = 1/15 3x = 75 x = 25 So B can do it in 25 days and A can do it in 37 1/2 days |
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