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OAU Post-UTME Mathematics 2011 Question 6

Question 6

Probability

A die is tossed twice. What is the probability of obtaining a total of 6 if both numbers are odd?

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

Answer: A (1/12)

Explanation

Of the 36 outcomes, the ones with both numbers odd and a total of 6 are (1,5), (3,3), (5,1): 3/36 = 1/12.