Question

A&B together can finish a piece of work in 12 days if A alone can finish the same work in 20days in how many days B alone can finish it?

Answer 1

Answer:

A and B can finish the work in day =1/12work

A can finish the same work in 1 day=1/20 work

B can finish the same work in one day=1/2-1/20=1/30 work

Bcan finish the total work=30 days