Question

A man and a boy can do a piece of work in 36 days. If the man works alone for last 10days the work is completed in 40 days. The boy alone can do the whole work in

Answer 1

Answer:

Both works together for 30 days. (40-10)

In 30 days, work completed 30/36= 5/6 units

Remaining work = 1-5/6= 1/6 units

For boy:

1/6 units in 10 days

so, 1 unit in 60 days.

Now

1/x = 1/36 - 1/60

so, 1/x = 1/90

and x = 90