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WAEC Mathematics 2016 Question 5

Question 5

Logic

Which of the following is a vaild conclusion from the premise: 'Nigerian footballers are good footballers'?

  1. A.Joseph plays football in Nigeria therefore he is a good footballer.
  2. B.Joseph is a good footballer therefore he is a Nigerian footballer.
  3. C.Joseph is a Nigerian footballer therefore he is a good footballer.
  4. D.Joseph plays good football therefore he is a Nigerian footballer.
Show the answer and explanation

Answer: C (Joseph is a Nigerian footballer therefore he is a good footballer.)

Explanation

The set of Nigerian footballers lies inside the set of good footballers, so anyone who is a Nigerian footballer must be a good footballer.