Math MCQ: A pipe fills a tank in 14 hours. Due to a leak, it takes 21 hours to fill. In how many hours can the leak empty the full tank?

A pipe fills a tank in 14 hours. Due to a leak, it takes 21 hours to fill. In how many hours can the leak empty the full tank?

Correct Answer: 42 hours

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WhatsApp+91 99922 70404Math MCQ: A pipe fills a tank in 14 hours. Due to a leak, it takes 21 hours to fill. In how many hours can the leak empty the full tank? | Extra Education