Question

A manufacture has 600 liter of a12 percent solution of acid how many liters of 30 percent acid solution must to be added to it so that the acid content in the resulting mixture will be more than 15 percent but less than 18 percent?

Answer 1

Answer:

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Step-by-step explanation:

Let x liters of 30% acid solution is required to be added. Then, total mixture = (x + 600) liters. ∴ 30% of x + 12% of 600 > 15% of (x + 600) From (1) and (2) we get 120 < x < 300 Thus, the number of liters of the 30% solution of acid will have to be more than 120 liters but less than 300 liters.Read more on Sarthaks.com - https://www.sarthaks.com/587411/manufacturer-has-600-liters-12-solution-acid-how-many-liters-30-acid-solution-must-added