Question

11. A and B can together finish a work in30 days. They worked at it for 20 days and then Bladem
remaining work was done by A alone in 20 more days. In how many days can A alone do it​

Answer 1

• Solution:

As A and B takes 30days to complete 1 work.

Therefore, A + B = 30days

They worked for 20 days.

It means 1 people takes double days as

worked by together.

Therefore A = 2× 20 = 40days

A worked for 20 days more .

Therefore,

No. days required by A = 40 + 20= 60 days.

In 60 days A can do it.