Question

A and B can do a work in 10 days . Band C can do in 15 days. C and A cand do in 12 days . how many days they work individually​

Answer 1

Answer:

A and B together can do a piece of work in 10 days, while B and C together can do it in 12 days and C and A together in 15 days. In how many days C would complete it alone? Hence C will finish the work in 40 days. So option [C] is correct answer