WAEC Mathematics 1998 Question 2

Question 2

Number Bases

Convert 35 to a number in base two.

  1. A.1011two
  2. B.10011two
  3. C.100011two
  4. D.110010two
  5. E.110001two
Show the answer and explanation

Answer: C (100011two)

Explanation

35 = 32 + 2 + 1 = 1×25 + 0 + 0 + 0 + 1×2 + 1, so 35 = 100011two.