Anil can do a piece of work in 5 days and Ankur in 4 days. How long will they will do the same work, if they work together?
Given,
Anil can do a piece of work in 5 days
Work done by him in 1 day =
Ankur can do same work in 4 days
Work done by Ankur in 1 day =
∵ Work done by both in 1 day =
∴ Total work done in =