Question

If 37 grams of pure drug are contained in 150 milliliters, how many grams are contained in 75 milliliter?

Answer 1

17.5

Explanation:

The ratio of "pure drug" to liquid is 35:150

Therefore to evaluate for 75 mls we get the ratio 75/2150 or simply 1/2

multiply 35 by the ratio 1/2

35/2=17.5