Math MCQ: A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish?

A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish?

Correct Answer: 120/13 days

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WhatsApp+91 99922 70404Math MCQ: A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish? | Extra Education