A and B can together 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 answers:
A) 4 days
B) 5 days
C) 6 days
D) 7 days
E) None of these
Explanation:   (A+B)'s 1 day work = 1/4   A's 1 day work = 1/12   B's 1 day work =   (14−112)=3−112=16   So B alone can complete the work in 6 days   Answer: 6 days
<result>C</result>
A and B can together 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 ?