A recipe requires 2 parts sugar to 3 parts flour. If you use 6 cups of flour, how much sugar should you use?

✓ Correct Answer: Option C

Set up a proportion: (sugar / flour) = (2 / 3). If flour is 6 cups, then (sugar / 6) = (2 / 3). Cross-multiply: 3 * sugar = 2 * 6, so 3 * sugar = 12. Divide by 3: sugar = 4 cups.