Ravi can do a piece of work in 15 days while Prakash can do it in 6 days.

Ravi can do a piece of work in 15 days while Prakash can do it in 6 days. In how many days will they finish it together?

Quiz

Answer/Solution

4 2/7 days

Steps/Work

1/15 + 1/6 = 7/30
30/7 = 4 2/7 days
ANSWER:E