Question

A, B and C can together finish a work in 3 days. A alone can do the same work in 8 days and B can do it in 6 days. How long will C take to complete the same work alone?​

Answer 1

Answer:

1/8+1/6+c=1/3

(3+4)/24+c=1/3

7/24+c=1/3

c=1/3-7/24

c=(24+7)/24

c=31/24