Acidity Concentration

Algebra Level pending

There is a solution A of 150 ml with 30% acidity. What should be the acidity concentration (in %) of solution B to be added to solution A, so the resulting solution C will be 1 L and 50% acidity? Round the answer to the nearest percent.

Tip. Use the following table for your help:

Solution ASolution BSolution C
Volume150 ml?1 L
Acidity %30%?50%

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