Anil can do a work in 15 days while Sunil can do it in 25 days. How long will they take if both work together?  Choose the correct choice from the following answers
A) 9 3/8 days  B) 4 2/8 days  C) 17 9/8 days  D) 12 7/8 days  E) 16 9/8 days
1/15 + 1/25 = 8/75   75/8 = 9 3/8 days   9 3/8 daysNSWER:9 3/8 days
<result>A</result>
Anil can do a work in 15 days while Sunil can do it in 25 days. How long will they take if both work together?