ISEE Word Problems Question 362: Answer and Explanation

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Question: 362

9. The mean of Mark’s, Linda’s, and Karen’s ages is 18. Mark is 20 years old. Linda is 18 years old. How old is Karen?

  • A. 16
  • B. 17
  • C. 18
  • D. 19

Correct Answer: A

Explanation:

A is correct. Let x = Karen’s age. .

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