Question
Efficiency of A, and B are in the ratio of 3 : 4. If
both can do a work together in 30 days. Find out how much days A will take to complete the work alone?Solution
Efficiency ratio of A : B = 3 : 4 Both work together in = 30 days So let total work = (3+4) × 30 = 210 units So A alone will do this in = 210/3 = 70 days
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