Question

A is half as efficient as B. C does half as much work as A and B together. If c alone can do the work in 40 days. Then in how many days will A, B and C together finish the work?

A 40/3 Days Correct Answer Incorrect Answer
B 15 Days Correct Answer Incorrect Answer
C 20 Days Correct Answer Incorrect Answer
D 30 Days Correct Answer Incorrect Answer

Solution

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