Tap 'A' can fill a water tank in 25 minu...

Tap 'A' can fill a water tank in 25 minutes , tap 'B' can fill the same tank in 40 minutes and tap 'C' can empty that tank in 30 minutes. If all the three taps are opened together , in how many minutes will the tank the completely filled up or emptied ?

3.1538461538462

15.384615384615

8.1538461538462

31.578947368421

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UPKAR PUBLICATION -PIPES AND CISTERNS-QUESTION BANK

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