Subject

    Quantitative Aptitude

    Topic

    Probability

    Four persons are to be choosen from a group of 3 men, 2 women and 4 children. Find the probability of selecting 1 man,1 woman and 2 children.

    ক)
    2/7
    খ)
    3/7
    গ)
    4/7
    ঘ)
    3/7

    Explanation

    Total number of persons = 9 Out of 9 persons 4 persons can be selected in 9C49C_4 ways =126 1 man,1 woman and 2 children can be selected in 3C1×2C1×4C13C_1\times2C_1\times4C_1 ways =36 So,required probability = 36/126 =2/7

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