Question

1. A is able to do a piece of work in 15 days and B can do the same work in 20 days. they can work together for 4 days, what is the fraction of work left A 8/15 B. 7/15 C. 11/15 D. 2/11 E. Other than those given as options​

Answer 1

Answer:

The fraction of the work left is 7/15