Question

A and B can do a piece of work in
9 days. A can do it in 18 day. B will
do the same work alone in​

Answer 1

Answer:

A = 9days

work done in 1 day = 1/18 0f work

time taken by A and B = 9 days

so work done in 1 day =1/9 of work

work done in one day by A + work done in one day by B = work done by both

1/18 + B work of day = 1/9 work

B work of day = 1/9-1/18

= 1/9

so time taken by B is 9 days..

hope it helps you