A: A's 1 day work = 1/12 B's 1 day work = 1/6 A's work is done in 3 days. Remaining work = 1 - (1/6 - 1/3) = 1/12 B's work is left. B's work will take 12 days to complete. B will take 12 / 16 = 9 days to finish the remaining work. The answer is (D).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:A and B can do a piece of work in 12 days and 16 days respectively. Both work for 3 days and then A goes away. Find how long will B take to complete the remaining work? Answer Choices: A)10 days B)17 days C)147 days D)9 days E)1478 days