A can do a piece of work in 18 days. He worked at it for 12 days and B finished the remaining work in 8 days. B alone can do the whole work in ?

A can do a piece of work in 18 days. He worked at it for 12 days and B

1.	A can do a piece of work in 18 days. He worked at it for 12 days and B finished the remaining work in 8 days. B alone can do the whole work in ?
A.	6 days
B.	4 days
C.	5 days
D.	8 days
Answer» C. 5 days