A solution strength of 45 mg of medicine in 25 mL of solutio

A solution strength of 45 mg of medicine in 25 mL of solution is available. If a patient needs 137mg of medicine, how many mL of the solution do you administer?

Solution

Solution:

Given a solution strength of 45 mg of medicine in 25 mL of solution.

So strength of 1 mg of medicine in 25/45 = 0.555 mL of solution.

Now 137 mg of medicine requires 137 * 0.555 mL of solution.

= 76.111 mL of solution ..................Answer