A and B together can do a piece of work in 5 days and A alone can do it in 8 days, then B alone can do the same piece of work in :
A and B together can do a piece of work in 5 days and A alone can do it in 8 days, then B alone can do the same piece of work in :
[A]
[B]
[C]
[D]
(A + B)’s 1 day’s work
A’s 1 day’s work
∴ B’s 1 day’s work
∴ B alone will complete the work in 
Hence option [B] is correct answer.
