Question

p is able to a piece of work in 15 days and Q can do the same work in 20 days . if they can work together for 4 days , what is the fraction of work left ​

Answer 1

Answer:

P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left? In 4 days= 7/60*4=28/60. ratio=8/15.