Subject

    Quantitative Aptitude

    Topic

    Probability

    Find the probability of selecting 2 woman when four persons are choosen at random from a group of 3 men, 2 woman and 4 children.

    ক)
    1/5
    খ)
    1/7
    গ)
    1/6
    ঘ)
    1/9

    Explanation

    Out of 9 persons,4 can be choosen in 9C49C_4 ways =126. Favourable events for given condition = 2C2×7C22C_2\times7C_2 = 21. So,required probability = 21/126 =1/6.

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