A can do a piece of work in 12 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work? Choose the correct choice from the following.
A) 17 days	B) 19 days	C) 22 days	D) 20 days	E) 18 days
18 days   18 days   8/12 + 6/x = 1   X = 18 days
<result>E</result>
A can do a piece of work in 12 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work?