A and B together can do a piece of work in 12 days, while B alone can finish it in 30 days. A alone can finish the work in :
A and B together can do a piece of work in 12 days, while B alone can finish it in 30 days. A alone can finish the work in :
[A]15 days
[B]18 days
[C]20 days
[D]25 days
20 days
A’s 1 day’s work
So, A alone will complete the work in 20 days.
Hence option [C] is correct answer.
