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WAEC Further Mathematics 2024 Question 27

Question 27

Matrices and Determinants

If (6 4 / 7 5)(2 / m) = 2(12 / 14.5), find the value of m. (Matrices written row by row; / separates the rows.)

  1. A.5
  2. B.4
  3. C.3
  4. D.2
Show the answer and explanation

Answer: C (3)

Explanation

The top row gives 12 + 4m = 24, so m = 3 (check: 14 + 5(3) = 29 = 2 × 14.5).