A and B together can complete a piece of work in 4 days.If A alone can complete the same work in 12 days, in how many days can B alone complete that work?	Choose the correct choice from the following options: A) 5 B) 7 C) 6 D) 4 E) 8
A and B's one day work=1/4   A's 1 day's work=1/12   B's 1 day's work=(1/4)-(1/12)=2/12=1/6   Hence B alone can complete the work in 6 days.   Answer is option 6
<result>C</result>
A and B together can complete a piece of work in 4 days.If A alone can complete the same work in 12 days, in how many days can B alone complete that work?