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One pump fills a tank 3 times as fast as another pump. If the pumps work​ together, they fill the tank in 12 minutes. How long does it take for the faster pump to fill the​ tank?
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One pump fills a tank 3 times as fast as another pump. If the pumps work​ together, they fill the tank in 12 minutes. How long does it take for the faster pump to fill the​ tank?

User Sameera Chathuranga
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Well I think in 4 mins because the faster pump pumped 3 times faster and they fill the tank in 12 mins so yea cause 12 divided by 3 but not 100% sure I'm using mental math
User Anastasia Black
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