Raj and Ram working together do a piece of work in 10 days. Raj alone can do it in 12 days. Ram alone will do the work in :
Raj and Ram working together do a piece of work in 10 days. Raj alone can do it in 12 days. Ram alone will do the work in :
[A]20 days
[B]40 days
[C]50 days
[D]60 days
60 days
(Raj + Ram)’s 1 day’s work
Raj’s 1 day’s work
∴ Ram’s 1 day’s work
∴ Required Time = 60 days.
Hence option [D] is correct answer.
