A: A and C can finish 100,000 piece of work in 15 days each. So in total they can finish 100,000 piece of work in 15 * 2 = 300 days. B can do 30% faster than A and C so he can finish 100,000 piece of work in 30 / 100 * 15 = 6 days. So in total he can finish 100,000 piece of work in 6 * 100 = 600 days. Hence total days in which all three can finish million piece of work is 1,000,000 / 600 = 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