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Mathematics, 05.09.2019 17:20, milagritomiracle
Two taps can fill a tank in 30 minutes and 40 minutes. another tap can empty it in 24 minutes. if the tank is empty and all the three taps are kept open, in how much time the tank will be filled?
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Two taps can fill a tank in 30 minutes and 40 minutes. another tap can empty it in 24 minutes. if th...
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