Raja and Abdul can finish the work 18 days if they work together. They worked together for 12 days and then Abdul left. Rja finished the remaining work in another 12 days. In how many days Raja alone can finish the work?
Choose the correct choice from the following choices:	A) 30 days	B) 60 days	C) 70 days	D) 36 days	E) 90 days
Amount of work done by Raja and Abdul in 1 day = 1/18   Amount of work done by Raja and Abdul in 12 days = 12 Ã— (1/18) = 2/3   Remaining work â€“ 1 â€“ 2/3 = 1/3   Raja completes 1/3 work in 12 days   Amount of work JOHN can do in 1 day = (1/3)/12 = 1/36   =&gt;Raja can complete the work in 36 days   Answer : 36 days
<result>D</result>
Raja and Abdul can finish the work 18 days if they work together. They worked together for 12 days and then Abdul left. Rja finished the remaining work in another 12 days. In how many days Raja alone can finish the work?