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WAEC Mathematics 1995 Question 49

Question 49

Probability

Two fair dice are tossed together once. Find the probability that the sum of the outcome is at least 10.

  1. A.1/12
  2. B.5/36
  3. C.1/6
  4. D.1/4
  5. E.5/18
Show the answer and explanation

Answer: C (1/6)

Explanation

Sums of 10 or more: (4,6), (5,5), (6,4), (5,6), (6,5), (6,6), which is 6 of the 36 outcomes, so 6/36 = 1/6.