OAU Post-UTME Mathematics 2019 Question 10

Question 10

Number Bases

Convert 101012 to base 3

  1. A.2103
  2. B.1123
  3. C.111212013
  4. D.10212113
Show the answer and explanation

Answer: A (2103)

Explanation

101012 = 16 + 4 + 1 = 21. 21 = 2 × 9 + 1 × 3 + 0, so it is 2103.