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OAU Post-UTME Mathematics 2012 Question 1

Question 1

Number Bases

Obtain the product of 11002 and 1012

  1. A.1111002
  2. B.1101002
  3. C.22205
  4. D.11447
Show the answer and explanation

Answer: A (1111002)

Explanation

11002 = 12 and 1012 = 5, product 60. 60 = 32 + 16 + 8 + 4 = 1111002. (22205 = 310 and 11447 = 424, so they are wrong.)