Question

To reduce 16 ounces of a 25% solution of antiseptic to a 10% solution, how much distilled water should a nurse add?


12 oz
24 oz
36 oz

Answer 1

Let X represent the water.
16 * 0.25 = (16+X)*.10
4 = 1.6 + .1X
2.4 = .1X
24 = X

Answer 2

spanks