A can finish a work in 9 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?
Choose the correct choice from the following:
A) 6
B) 3
C) 5.5
D) 7
E) 8
B's 10 day's work = ( 1 x 10 ) = 2 .   15 3   Remaining work = ( 1 - 2 ) = 1 .   3 3   Now, 1 work is done by A in 1 day.   9   Therefore 1 work is done by A in ( 9 x 1 ) = 3 days.   3
<result>B</result>
A can finish a work in 9 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?