Question

if A completes a piece of work in 10 days, and B in 6 days how long will they take to complte the work if they work together

Answer 1

A completes the work in 10 days.

A's 1 day work= 1/10

B completes the work in 6 days.

B's 1 day work=1/6

If they do together, their 1 day work= 1/6+1/10= 16/60

so, their work will be completed by 60/16 days or 15/4 days

Answer 2

hope this helps you.