Dilution math question
An order for 1.2L of a 10% oral solution is needed. In stock you have only 12% solution. Which of the following mixtures will yield the volume and strength needed to fill this order?
A. 800ml of 12% + 400ml of sterilized water
B. 1000ml of sterilized water + 200ml of 12%
C. 600ml of 12% + 600ml of sterilized water
D. 200ml of sterilized water + 1000ml of 12%
I can't understand what I am doing wrong with this problem. I have done many dilution problems but this one is difficult for me.
Thank You for helping me . I will look at some of the other problems to see if I can help someone else.