WAEC Mathematics 2008 Question 6

Question 6

Number Bases

Convert 425 to a base three numeral.

  1. A.2013
  2. B.2103
  3. C.2113
  4. D.2223
Show the answer and explanation

Answer: C (2113)

Explanation

425 = 4 × 5 + 2 = 22. 22 = 2 × 9 + 1 × 3 + 1, so it is 2113.