Question

A and B finish a work separately in 45
and 30 days, both start working together
but after a few days A left, B alone
completed the remaining work in 15
days. Find out after how many days left the work?​

Answer 1

Step-by-step explanation:

A+B's 20 day's work=

30

1

×20=

3

2

Remaining work=1−

3

2

=

3

3−2

=

3

1

Now,

3

1

rd

work is done by A in 20 days.

∴ The whole work will be done by A in 20×3=60 days.