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WAEC Mathematics 2014 Question 9

Question 9

Inequalities

Given that x > y and 3 < y, which of the following is/are true?
I. y > 3
II. x < 3
III. x > y > 3

  1. A.I only
  2. B.I and II only
  3. C.I and III only
  4. D.I, II and III
Show the answer and explanation

Answer: C (I and III only)

Explanation

3 < y means y > 3 (I), and x > y > 3 (III). Then x > 3, so II is false.