Ram can do a job 15 days. His wife takes 20 days and his son finishes it in 25 days. How long will they take to complete the job if they all work together?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Time taken by Ram to do a work = 15 days 1 day's work of Ram =

Time taken by his wife to do a work = 20 days 1 day's work of his wife =

Time taken by his son to do a work = 25 days 1 day's work of his son =

Thus, 1 day's work of three persons =

Henec, all three together will complete the work in days.

Answered by  | 4th Jun, 2014, 03:23: PM