A and B together can do a work in 3 days. If A alone can do it in 12 days. In how many days can B alone do it?	Select
A) 4	B) 6	C) 8	D) 10	E) 25
4   4   1/3 â€“ 1/12 = 1/4 =&gt; 4
<result>A</result>
A and B together can do a work in 3 days. If A alone can do it in 12 days. In how many days can B alone do it?