A: A's 1 day work = 1/12. B's 1 day work = 1/24. (A + B)'s 1 day work = 1/24 * 12 days = 8 days. The answer is (A).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:A completes a work in 12 days and B complete the same work in 24 days. If both of them work together, then the number of days required to complete the work will be Answer Choices: A)8 days B)9 days C)10 days D)12 days E)13 days