An 8-ounce serving of apples contain 8% of your daily vitamin C. How many ounces of apples would you need to get 100% of your daily vitamin C?
+37099 100% / (8%) = x/ 8 oz Multiply both sides by 8 oz
100 oz = x (each oz has 1% so you will need 100 oz to reach 100% RDA)
