Math MCQ: A pipe fills a tank in 20 hours. Another pipe empties it in 30 hours. If both are opened together, in how many hours will the tank be filled?

A pipe fills a tank in 20 hours. Another pipe empties it in 30 hours. If both are opened together, in how many hours will the tank be filled?

Correct Answer: 60 hours

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WhatsApp+91 99922 70404Math MCQ: A pipe fills a tank in 20 hours. Another pipe empties it in 30 hours. If both are opened together, in how many hours will the tank be filled? | Extra Education