Question

A can do a piece of work in 20 days and B can do
it in 15 days. How long will they take if both work
together?​

Answer 1

Answer:

1/20+1/15= 7/60

answer is 7/60 hope it help u...

Answer 2

Answer:

heya mate.

1/20+1/15=1/60

hope it helps you