20 man can finish a work in 30 days. After how many days should 5 men leave the work so that the work may be finished in 35 days?

20 man can finish a work in 30 days. After how many days should 5 men leave the work so that the work may be finished in 35 days?

A 10

B 12

C 15

D 20

Solution

Correct Answer: Option C