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A 50 L tank initailly contains 10 L of fresh water, At t=0, a brine solution containing 1 lb of salt per gallon is poured into the tank at the rate of 4 L/min, while the well-stirred mixture leaves the tank at the rate of 2 L/min. Then the amount of time required for overflow to occur in |
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Answer» 30 min The VOLUME of brine in the tank at any TIME t is given as `V_(0)+et-ft=10+2t` We require t when `10+2t=50`. HENCE, t=20 min. |
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