5.Acan do a piece of work in 25 days, which Balone can finish in 20 da

1.	5.Acan do a piece of work in 25 days, which Balone can finish in 20 days. Both together workfor 5 days and then A leaves off. How manydays will B take to finish remaining work?
Answer» A can do a piece of work in 25 days ⇒ A can do a work of W/25 in one day B can do a piece of work in 20 days ⇒ B can do a work of W/20 in one day given the both work 5 days 5 days work of both A and B is 5W/25 + 5W/20 = W/5 + W/4 = 9W/20 remaining work after A leaves is W - 9W/20 = 11W/20 11W/20 work is to be done B alone and B can do a work of W/20 in one day ⇒ B completes the remaining work in 11 days.

5.Acan do a piece of work in 25 days, which Balone can finish in 20 days. Both together workfor 5 days and then A leaves off. How manydays will B take to finish remaining work?

Answer»

A can do a piece of work in 25 days

⇒ A can do a work of W/25 in one day

B can do a piece of work in 20 days

⇒ B can do a work of W/20 in one day

given the both work 5 days

5 days work of both A and B is 5W/25 + 5W/20 = W/5 + W/4 = 9W/20

remaining work after A leaves is W - 9W/20 = 11W/20

11W/20 work is to be done B alone and B can do a work of W/20 in one day

⇒ B completes the remaining work in 11 days.