A: A and C can finish 100,000 piece of work in 15 days each. So, A and C can finish 100,000 piece of work in 15 * 2 = 300 days. B can do 30 / 100 * 100,000 / 15 = 250,000 piece of work faster than A and C. So, B can finish 250,000 piece of work in 30 / 100 * 100,000 / 15 = 46 days. Together, A, C and B can finish 1 million piece of work in 46 / 3 = 51 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