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?
Choices:  A) 11  B) 10  C) 9  D) 8  E) 7
(5 + x)/20 + 5/25 = 1 =&gt; x = 11 days   11NSWER 11
<result>A</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?