NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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How is ratio strength calculated?

  1. 100*percent strength

  2. percent strength/100

  3. 100/percent strength

  4. percent strength*100

The correct answer is: 100/percent strength

Ratio strength is calculated by dividing 100 by the percent strength. This is because percent strength is a fraction of 100, and dividing 100 by a fraction is equivalent to multiplying by its reciprocal. The other options either multiply the percent strength by 100 or divide it by 100, which would result in an incorrect calculation.

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