A: A and C can finish work in 15 days each in a month so they can finish work in 15 * 2 = 30 days. B can do work in 30 / 100 * 15 = 7 days. Thus A and C can finish work in 30 + 7 = 46 days. B can do work in 30 / 100 * 7 = 15 days. Thus B can finish work in 15 + 15 = 39 days. Therefore in all it would take to finish work in 46 days. The answer is (B).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:A and C can finish 100,000 piece of work in 15 days each. B can do 30% faster than A and B.Approximately how many days would it take to finish million piece of work with all three working simultaneously? Answer Choices: A)40 B)46 C)51 D)42 E)54