1.

A manufacturer has 600 liters of an 12% acid solution. The number of liters of a 30% acid solution to be added to it so that acid content in the resulting mixture will be more than 15% but less 18% is in the interval

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A manufacturer has 600 liters of an 12% acid solution. The number of liters of a 30% acid solution to be added to it so that acid content in the resulting mixture will be more than 15% but less 18% is in the interval



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