# A, B and C can do a work in 9, 30 and 45 days respectively.

A, B and C can do a work in 9, 30 and 45 days respectively. If they work together, in how many days will they complete the work?

## Answer/Solution

6

### Steps/Work

One days's work of A, B and C = 1/9 + 1/30 + 1/45

= (10 + 3 + 2)/90 = 1/6

A, B and C together can do the work in 6 days.

Answer:B

= (10 + 3 + 2)/90 = 1/6

A, B and C together can do the work in 6 days.

Answer:B