Question

if ramu can do a piece of work in 10 days and mohan can do it in 15 days, then both of them can do the same work in

Answer 1

here is the answer buddy they could do the same work in 7 and a half days I hope it helps you

Answer 2

ramu one day work=1/10
Mohan one day work=1/15
ramu and Mohan together one day work=1/10+1/15=(3+2)/30=5/30=1/6
together can finish the work in 6 days