A and B together can do a task in 5 days and the total unit of work to be done is 40 units. If A alone can finish the task in 20 days, then how many days B will take to finish the task if he does alone?

A and B together can do a task in 5 days and the total unit of work to

1.	A and B together can do a task in 5 days and the total unit of work to be done is 40 units. If A alone can finish the task in 20 days, then how many days B will take to finish the task if he does alone?
A.	\(6\frac{2}{3}\) days
B.	\(6\frac{1}{3}\) days
C.	7 days
D.	2 days
Answer» B. \(6\frac{1}{3}\) days

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A and B together can do a task in 5 days and the total unit of work to be done is 40 units. If A alone can finish the task in 20 days, then how many days B will take to finish the task if he does alone?

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