2. A tank contains 200 gal of a 2% solution of HCl. A 5% solution of HCl is added at 5 gal/min. The well mixed solution is being drained at 5 gal/min. When does the concentration of HCl in the solution reach 4 %? ANS. 43.94 min

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A: Image is attached with detailed solution.

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A: Solution:-

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.