Question

A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together?​

Answer 1

Answer:

8/9 days

One day work of A = 1/8

one day work of B = 3/8

one day work of C = 5/8

one day work of all three = 9/8

So all three will complete work in 8/9 days.