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WAEC Data Processing 2025 Question 2

Question 2

Number Systems

Convert AOBHEX to a number in binary.

  1. A.101001011,
  2. B.101101010,
  3. C.101000001011,
  4. D.101100001010,
Show the answer and explanation

Answer: C (101000001011,)

Explanation

Each hex digit is 4 bits: A = 1010, 0 = 0000, B = 1011, giving 101000001011.