87. Three pipes A, B, C can fil an empty cistern in 2, 3 and 6 hours respectively || edu214

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3. A cistern can be filled with water by a pipe in 5 hours and it can be emptied by a || edu214 3. A cistern can be filled with water by a pipe in 5 hours and it can be emptied by a || edu214
Three taps A,B and C can fill up an empty tank in 6 hours, 8 hours & 12 hours respectively. Three taps A,B and C can fill up an empty tank in 6 hours, 8 hours & 12 hours respectively.
Pipes and cistern Pipes and cistern
Two pipes can fill a cistern in 3 hours and 4 hours respectively and a waste pipe can empty it Two pipes can fill a cistern in 3 hours and 4 hours respectively and a waste pipe can empty it