A and B together can do a work in 6 days. If A alone can do it in 15 days. In how many days can B alone do it?	Choose the correct choice from the following answers
A) 7	B) 13	C) 19	D) 10	E) None
1/6 â€“ 1/15 = 1/10   B can do the work in 10 days   Answer: 10
<result>D</result>
A and B together can do a work in 6 days. If A alone can do it in 15 days. In how many days can B alone do it?