And B Working Together Can Do Piece Of Work In 10 Days B Alone Can Do Same Work In 15 Days

A and B working together can do a piece of work in 10 days B alone can do the same work in 15 days. How long will A alone take to do the…

Answers:

A and B together can do a work in 10 days and B can do the same work in 15 days

 A and B’ s one day’s  work = 1/10

And B’ s one day’s work = 1/15

∴  A’s one day’s work = 1/10 – 1/15

= (3 – 2)/30

= 1/30

Hence  A can do the same work in = 30 days