Subject

    Quantitative Aptitude

    Topic

    Probability

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

    ক)
    1/6
    খ)
    1/2
    গ)
    1/9
    ঘ)
    3/4

    Explanation

    In two throws of a die, n(s)=(6 x 6)=36 let E= Event of geting a sum 9={(3,6),(4,5),(5,4),(6,3)} P(E) = n(E)/n(S) = 4/36 = 1/9

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