Reconstruct a question, answer pair from this explanation: 8/12 + 6/x = 1
X = 18 days
Q: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?
Options:
(A) 18
(B) 77
(C) 66
(D) 55
(E) 12
A:(A)