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Two positive numbers add to 106, and their difference is 18. What is the smaller number?

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Question: Two positive numbers add to 106, and their difference is 18. What is the smaller number?

  1. 45
  2. 44
  3. 43
  4. 46

Correct Answer: B — 44

Explanation: With a sum S and difference D, the smaller number is (S − D)/2.
(106 − 18) ÷ 2 = 44. This is the requested value.

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