A 750-liter tank initially contains 450 liters of brine of concentration 0.25 kg/L. Pure water enters the tank at a rate of 50 liters/hour and brine is pumped out of the tank at the same rate. Develop the equation through which the amount of salt may be calculated at any time.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A 750-liter tank initially contains 450 liters of brine of concentration 0.25 kg/L. Pure water enters the tank at a rate of 50 liters/hour and brine is pumped out of the tank at the same rate. Develop the equation through which the amount of salt may be calculated at any time.

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