Ramesh can finish a work in 20 days and Sushil in 25 days. They both work together for 5 days and then Sushil goes away. In how many days will Ramesh complete the remaining work?  Choose the correct choice from the following answers
A) 15 days B) 13 days C) 12 days D) 11 days E) 18 days
11 days   (5 + x)/20 + 5/25 = 1 =&gt; x = 11 days
<result>D</result>
Ramesh can finish a work in 20 days and Sushil in 25 days. They both work together for 5 days and then Sushil goes away. In how many days will Ramesh complete the remaining work?