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Post-UTME Mathematics 2013 Objective — Question 96

Question 96 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

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A number is selected at random from the set {3, 0, √4, √5, 2/9}. What is the probability the number is rational?

  • A. 2/5
  • B. 3/5
  • C. 1/5
  • D. 4/5Correct

Explanation

3, 0, √4(=2), and 2/9 are rational (4 numbers); only √5 is irrational. Probability = 4/5.

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