A is 1.5 times as efficient as B. A & B together complete the work in 12 days. In how many days, A alone can complete the work?
Let's assume the total work is 60 units.
A & B together complete the work in 12 days.
The efficiency of A & B together = $$\frac{60}{12}$$
= 5 units/day
A is 1.5 times as efficient as B.
the efficiency of A = 1.5 of the efficiency of B
the efficiency of A :Â efficiency of B = 3:2
efficiency of A = 3Â units/day
efficiency of B = 2 units/day
Time taken by A alone to complete the work =Â $$\frac{60}{3}$$
= 20 days
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