Question
A can do a piece of work in 40 days. A is 25% more
eicient than B. In how many days the work gets completed when both of them work together?Solution
Efficiency of A = 1/40 Efficiency of B = (1/40) × (1/1.25) = 1/50 Time taken by B to complete the work = 50 days Let the total amount of work = 200 units Amount of the work done by A in one day = 200/40 = 5 units Amount of the work done by B in one day = 200/50 = 4 units Time taken by both to complete the work = (200/9) days
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