Question

A and B can together do a work in 56 days. with the help of C they could complete it in 42 days. how much time will C take to finish the work alone​

Answer 1

Answer:

Hui

Step-by-step explanation:

A+B's  1  day  work  = 56/1

A+B+C 's  1  day  work = 42/1

Thus, C's  1  day  work  = 42/1- 56/1

Hence, C can complete work in 168 days.