Civil Service Exam Reviewer · Ratio and Proportion · medium

A recipe for 2 servings uses 4 cup(s) of flour. How many cups are needed for 19 servings?

  1. 8/19
  2. 21
  3. 38
  4. 39

Answer

C. 38

Solution

Flour per serving = 4/2 cup. For 19 servings: 19 × 4/2 = 38.

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