Digital PSAT Math Practice Question 304: Answer and Explanation

Question: 304

A recipe that will yield 6 cupcakes calls for 4 eggs, 3 cups of flour, and 6 cups of sugar. If someone wishes to make 15 cupcakes, how many cups of flour should he or she use?

  • A. 6
  • B. 7.5
  • C. 12.5
  • D. 13

Correct Answer: B

Explanation:

(B) Set up a proportion to solve for the unknown number of cups of flour. Use the ratio 6 cupcakes to 3 cups of flour → 3/6 = 15/xx = 7.5

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