WAEC Mathematics 2021 Question 2

Question 2

Number Bases

Simplify: (11two)2.

  1. A.1001two
  2. B.1101two
  3. C.101two
  4. D.10001two
Show the answer and explanation

Answer: A (1001two)

Explanation

11two = 3 and 32 = 9 = 8 + 1 = 1001two.