A does a work in 10 day and B does the same work in 15 days. In how many days they together will do the same work?

A does a work in 10 day and B does the same work in 15 days. In how many days they together will do the same work?

A 5 days

B 6 days

C 8days

D 9 days

Solution

Correct Answer: Option B