Question

Which equation calculates the number of 1313-cup servings you can make with 4 cups of pudding?

Answer 1

D is the correct answer partly because it's the only equation that has the correct outcome and partly because you have to divide 1313 by 4 anyways for the answer to make sense.
number of cups you have ÷ number of cups per serving = number of servings

Answer 2

D. 1313 divide by 4 equals 12