a nurse dilutes a solution that has an 8% concentration of medicine by adding water, so that the concentration of medicine in the new solution is no greater than 2%. If the nurse had 200 ml of the 8% solution, which of the following could be the volume of water that is added?
답 600ml, 800ml
600 미리 더 넣은것은 이해가 가는데 왜 800미리도 답이 되는걸까요?