Question

A B and C working together can finish a piece of work in 8 hrs A alone can do it in 20 hrs and B alone can do it in 24 hrs in how many hours will C alone complete the same work​

Answer 1

Answer:

C alone can do the same work in 1÷ 1/30= 1× 30 = hours. Hence, C alone can do the same work in 30 hours.