WAEC Mathematics 2026 Question 13

Question 13

Number Bases

If 110x = 1234 − 1112, find the value of x

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

Answer: C (4)

Explanation

1234 = 27 and 1112 = 7, so x² + x = 20, giving (x + 5)(x − 4) = 0 and x = 4.