$\"\"$

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The differential equation is $\"\"$ .

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Rewrite the equation.

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$\"\"$ .

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The equation is in the form of first order linear differential equation $\"\"$ .

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$\"\"$ and $\"\"$ .

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Solution of first order linear differential equation $\"\"$ is $\"\"$ .

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Find $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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The solution of differential equation is $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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Find the value of the constant by using initial conditions, $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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Amount of salt is $\"\"$ .

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$\"\"$

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Find the concentration of salt after $\"\"$ minutes.

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$\"\"$

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$\"\"$ kg.

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Find the volume of the liquid after $\"\"$ minutes.

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Volume $\"\"$ .

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Volume $\"\"$ L.

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Concentration of salt : $\"\"$ kg/L.

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Concentration of salt is $\"\"$ minutes is $\"\"$ kg/L.

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$\"\"$

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Amount of salt is $\"\"$ .

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Concentration of salt is $\"\"$ minutes is $\"\"$ kg/L.