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A and B together can complete a task in 10 days. B and C together can complete it in 15 days, and A and C in 12 days. In how many days can A alone complete the work?

Correct Answer: 20 days

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Math MCQ: A and B together can complete a task in 10 days. B and C together can complete it in 15 days, and A and C in 12 days. In how many days can A alone complete the work? | Extra Education