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? Pick
A) 15 days	B) 25 days	C) 18 days	D) 20 days	E) 21 days
Explanation:   8/12 + 6/x = 1   X = Explanation:   8/12 + 6/x = 1   X = 18 days   Answer 18 days
<result>C</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?