A recipe needs 3 cups of flour to make 12 muffins. How many cups of flour are needed to make 20 muffins in the same proportion?
Show answer & explanation
Correct answer: B
Explanation
Flour to make 12 muffins = 3 cups
Flour to make 1 muffin = 3/12 = 1/4 cup
Flour to make 20 muffins = 20 × 1/4
= 5 cups