A and B together can do a work In 4 days. A alone can do it in 12 days. What time B will take to do the work alone?  Choose the correct choice from the following options:
A) 6 days	B) 8 days	C) 12 days	D) 10 days	E) 5 days
Explanation:   A and B 1day's work = 1/6   A alone can do 1day's work = 1/12   what time B will take to do the work alone?   B = (A+B) - A = (1/6) - (1/12) = 12 Days   Answer: Option 12 days
<result>C</result>
A and B together can do a work In 4 days. A alone can do it in 12 days. What time B will take to do the work alone?