NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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How do you find percent strength from ratio strength?

  1. 100+ratio strength

  2. 100*ratio strength

  3. 100/ratio strength

  4. ratio strength/100

The correct answer is: 100/ratio strength

To find percent strength from ratio strength, you need to divide the ratio strength by 100. Option A is incorrect because adding 100 to the ratio strength does not give the percent strength. Option B is incorrect because multiplying 100 by the ratio strength also does not give the percent strength. Option D is incorrect because dividing the ratio strength by 100 gives a decimal value, not a percent. Option C is the correct method because dividing the ratio strength by 100 gives the decimal value which can be converted to percent by moving the decimal point two places to the right.