Math MCQ: Pipe A fills a tank in 15 hours and pipe B empties it in 20 hours. Pipe C fills it in 30 hours. If all are opened together, how long will it take to fill the tank?

Pipe A fills a tank in 15 hours and pipe B empties it in 20 hours. Pipe C fills it in 30 hours. If all are opened together, how long will it take to fill the tank?

Correct Answer: 60 hours

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WhatsApp+91 99922 70404Math MCQ: Pipe A fills a tank in 15 hours and pipe B empties it in 20 hours. Pipe C fills it in 30 hours. If all are opened together, how long will it take to fill the tank? | Extra Education