Question

Question #4be82

Answer 1

`=11` days

Explanation:

Yash can accomplish in `1` day `(1/20)` of a work
Bunu can accomplish in `1` day `(1/25)` of a work
Together for `5` days Duo completed `5(1/20+1/25)=9/20` of the work
So the remaining work is `1-9/20=11/20`
Since
Yash can accomplish `1` work in `20` days
or
He can accomplish `11/20` work in `(11/20)20=11` days