A: A and C can finish 100,000 piece of work in 15 x 2 = 300 days. B can finish 30% faster than A and C, so he can finish 100,000 piece of work in 150 / 30 = 30 days. So B can finish 100,000 piece of work in 30 x 2 = 60 days. So in all it would take to finish million piece of work, it would take 300 + 60 + 15 = 460 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