ISEE Mathematics Achievement Question 99: Answer and Explanation

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Test Information

Question: 99

15. If 6 + x + y = 20, and x + y = k, then 20 - k =

  • A. 0
  • B. 6
  • C. 14
  • D. 20

Correct Answer: B

Explanation:

The correct answer is (B). 6 + x + y = 20

x + y = 14 = k; now substitute

20 - 14 = 6

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