A tank initially contains 100 gallons of water. A salt solution containing 2lbs of salt per gallon flows in at the rate of 3 gallons per minute and the well stirred mixture flows cut at the same rate. When will the tank have 100 lbs of salt? a. 23.6 minutes b. 24.5 minutes c.23.1 minutes  d. 20.5 minutes solve using the application of differential equation

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