- A common antiseptic in the United States is a 2% iodine solution. A
nurse has two solutions that she wants to mix to make the required 2%
solution. One of her solutions is 0.5% iodine, and the other is 4% iodine.
How many kilograms of the 4% solution should she mix with 1 kilogram
of the 0.5% solution to produce the required mix?
