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A tank contains 1000 litres of water in...

A tank contains 1000 litres of water in which 100 grams of salt is dissolved Salt solution runs at a rate 10 litres per minute , each litre contains 5 grams of dissolved salt . The mixture of the tank is kept uniform by stirring . Salt solution runs out at 20 litres per minute . Find the amount of salt at any time .

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The correct Answer is:
`x = 2500 - 2400 e^(-0.02t)`
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