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WAEC Mathematics 1995 Question 50

Question 50

Probability

From a box containing 2 red, 6 white and 5 black balls, a ball is randomly selected. What is the probability that the selected ball is black?

  1. A.2/13
  2. B.5/13
  3. C.5/11
  4. D.5/6
  5. E.11/13
Show the answer and explanation

Answer: B (5/13)

Explanation

There are 2 + 6 + 5 = 13 balls and 5 are black, so the probability is 5/13.