Mathematics · Pipes and Cisterns

A tap can empty a water tank in 30 minutes. A second tap can empty it in 45 minutes. If both taps operate simultaneously, how much time is needed to empty the tank? (in minutes)

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A tap can empty a water tank in 30 minutes. A second tap can empty it in 45 minutes. If both taps operate simultaneously, how much time is needed to empty the tank? (in minutes)

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A tap can empty a water tank in 30 minutes. A second tap can empty it in 45 minutes. If both taps operate simultaneously, how much time is needed to empty the tank? (in minutes)

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