Civil Service Exam Reviewer · Ratio and Proportion · hard

Two similar boxes have corresponding sides in the ratio 1 : 5. What is the ratio of their volumes?

  1. 1 : 5
  2. 1 : 25
  3. 2 : 10
  4. 1 : 125

Answer

D. 1 : 125

Solution

For similar figures, volumes scale as the cube of the side ratio: 1 : 125.

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