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WAEC Mathematics 2000 Question 8

Question 8

Number Bases

If 104x = 68, find the value of x

  1. A.5
  2. B.7
  3. C.8
  4. D.9.
Show the answer and explanation

Answer: C (8)

Explanation

104x = x2 + 4 = 68, so x2 = 64 and x = 8.