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WAEC Mathematics 2025 Question 21

Question 21

Linear and Simultaneous Equations

Two consecutive odd integers are such that the sum of 5 times the smaller and 3 times the bigger integer is 222. Find the value of the smaller integer.

  1. A.31
  2. B.29
  3. C.27
  4. D.25
Show the answer and explanation

Answer: C (27)

Explanation

5x + 3(x + 2) = 222 gives 8x = 216, so x = 27.