A alone can finish a work in 20 days. And B alone can finish same work in 25 days.both together work for 5 days.after that B leave that work.in how many days A alone can finish remaining work? Choose one:	A) 11	B) 12	C) 13	D) 14	E) 15
Work of A in 1 day= 1/20, work of B in 1 day = 1/25   (A+B) work in 5 day= 5(1/20+1/25)=5*(5+4)/100=9/20.   Remaining work=[1-9/20]=11/20   11/20 part of work 11 alone do = [1×20×11/20] days = 11 days   11nswer 11
<result>A</result>
A alone can finish a work in 20 days. And B alone can finish same work in 25 days.both together work for 5 days.after that B leave that work.in how many days A alone can finish remaining work?