Subject

    Quantitative Aptitude

    Topic

    Probability

    What is the probability of getting a sum 9 from two throws of a dice?

    ক)
    1/6
    খ)
    1/8
    গ)
    1/9
    ঘ)
    1/12

    Explanation

    In two throws of a die, n(S) = (6 x 6) = 36. Let E = event of getting a sum = {(3, 6), (4, 5), (5, 4), (6, 3)}. P(E) = n(E)/ n(S) = 4/36 =1/9

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