Math

7,500 to a percentage strength

0.013% ( 100 divided by 7,500 ) = 0.013%

Percentage Strength

100/ratio strength or out of 100 percent If, during the PTCB exam, you are given a ratio and asked to convert it to percentage strength - simply divide 100 by the ratio value.

180 grams of an ointment contains 25 grams of active ingredient and 155 grams of excipient. To the nearest whole number, what is the percentage strength of the medicine?

14% Active ingredient = 25mg (the drug substance) Total weight of the medicine = 180 grams (active ingredient + excipients) Therefore, (25mg / 180grams) x 100% = 13.88% Rounding up to the nearest whole number = 14%

Convert 84 degrees Fahrenheit to degrees Celsius.

28.9 degrees C 84 - 32 = 52 52/1.8 = 28.88 degrees C/ 28.9 C

a patient would like to purchase claritin-D 12 hr that has 120 mg of pseudoephedrine. what is the max number of tablets they can purchase today?

30 tablets 120 mg --> 0.12 g 3.6 g (daily limit)/ 0.12 g= 30

How to convert a given ratio to percentage strength

divide 100 by the ratio value