Subject

    Quantitative Aptitude

    Topic

    Probability

    In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many will he have to take out of his pocket to ensure that he has taken out at least one of each color?

    ক)
    3
    খ)
    8
    গ)
    9
    ঘ)
    11

    Explanation

    4 blue followed by 4 green followed by 1 red would be the maximum number of draws to get at least one of each color: Ans: 9

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