Pipes and Cisterns
easyQ1
Pipes A and B fill a tank in 6 hours and 12 hours respectively. They are opened together for 2 hours, then pipe A is closed. How long does the tank take to fill completely?
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Pipes A and B fill a tank in 6 hours and 12 hours respectively. They are opened together for 2 hours, then pipe A is closed. How long does the tank take to fill completely?