Question

A can do a piece of work in 24 days. If B is 60% more efficient than A,then the number of days required by B to do twice as large as the earlier work is .
but your answer is 15. but the given answer is 30

Answer 1

Answer:

30 days

Step-by-step explanation:

A= 24 days.

1/B = 60% of(1/A)+ 1/A

=>B = 15 days.

So required is twice of B which is 30 days