Question

A. B and C can do a piece of work in 10 days, 15 days and 20 days
respectively. They began to work together but after 3 days A leaves the
work. In how many days will B and C finish the remaining work?​

Answer 1

Answer:

A, B and C can do a work in 10 days, 15 days and 20 days, respectively. They began together but A left the work after 2 days and B after 3 days. In how many days will C alone finish the work? Work done by A in 2- days= 2/10 = 2/10 - part of the work.