UI Post-UTME Mathematics 2013 Question 18

Question 18

Number Bases

Find x if 212three = 1x3four

  1. A.3
  2. B.2
  3. C.1
  4. D.0
Show the answer and explanation

Answer: C (1)

Explanation

212₃ = 18 + 3 + 2 = 23 and 1x3₄ = 16 + 4x + 3, so 4x = 4 and x = 1.