c. Challenge Problem Suppose a total of 15 ounces of medicine is added to the original mixture (so that the total volume is now 25 ounces with 18 ounces of medicine and 7 ounces of water). How much water must now be added so that the mixture has the same proportion of medicine and water as the original mixture? ounces Preview Try again. If there is 18 ounces of medicine in the mixture, how many ounces of water should there be in the mixture (use the ratios you computed earlier in this example)? How many ounces of water must you add to the 7 ounces of water to obtain this amount of water? a. Complete the following statements. a. The volume of water is always 0.6998 b. The volume of water is always 2.33125 c. The volume of medicine is always 0.4285 times as large as the total volume of liquid in the mixture. Preview times as large as the volume of medicine in the mixture. Preview times as large as the volume of water in the mixture. Preview