8. A pipe can fill a tank in ‘x’ hours and another pipe can empty it in y (y x) hours. If || edu214

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7. A tap can fill a cistern in 8 hours and another tap can empty it in 16 hours. If both || edu214 7. A tap can fill a cistern in 8 hours and another tap can empty it in 16 hours. If both || edu214
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