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 one:
A) 18
B) 99
C) 77
D) 62
E) 12
8/12 + 6/x = 1   X = 18 days   18nswer:18
<result>A</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?