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    Question

    A pair of dice is rolled once, what is the probability that

    the sum of the numbers on top is 5?
    A 1/6 Correct Answer Incorrect Answer
    B 1/36 Correct Answer Incorrect Answer
    C 1/18 Correct Answer Incorrect Answer
    D 1/9 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    For the sum to be 5, the various favorable outcomes are: (4,1), (1,4), (2,3) and (3,2)
    => Total number of favorable outcomes = 4; Total number of possible outcomes = 6*6 = 36
    => Probability = 4/36 = 1/9

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