Question

A and B can do a piece of work in 40 days. Their skills of doing the work are in the ratio 8:5. How many
days will A take to engage alone?​

Answer 1

Answer:

Ratio of efficiency of A:B=8:5

Total Efficiency=13

When the total efficiency is 13, they complete the work in 40 days

When the efficiency of A is 8, A could complete the work in (40/8)*13 = 65 days

Thus. A alone can do the work in 65 days.

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