Question

A and B together finish a piece of worka in 12 days .if A alone an finish the same work in 20 days in how many days B alone xan finish it​

Answer 1

Answer:30

Step-by-step explanation:

Let B can alone finish the work in x days.

A's one day work = 1/20

B's one day work= 1/x

Both can complete the work in 12 days

So,

A's one day work + B's one day work = 1/12

1/20 + 1/x = 1/12

Solving above equation we get x=30 days.