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Tanks X and Y contain 500 and 200 gallons of water [#permalink]
06 Nov 2006, 05:55
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Tanks X and Y contain 500 and 200 gallons of water respectively. Water is being pumped out of tank X at a rate of K gallons per minute and water is being added at M gallons per minute. How much time will elapse before the two tanks contain equal amounts of water?