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JAMB Mathematics 1998 Question 49

Question 49

Probability

In a recent zonal championship games involving 10 teams, teams X and Y were given probabilities 2/5 and 1/3 respectively of winning the gold in the football event. What is the probability that either team will win the gold?

  1. A.2/15
  2. B.7/15
  3. C.11/15
  4. D.13/15
Show the answer and explanation

Answer: C (11/15)

Explanation

Only one team can win, so add the probabilities: 2/5 + 1/3 = 6/15 + 5/15 = 11/15.