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Discussion :: Probability

  1.  An urn contains 3 red and 4 green marbles. If three marbles are picked at random, what is the probability that two are green and one is red ?

    2. A.

    3/7
    B.

    18/35
    C.

    5/14
    D.

    4/21

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    Answer : Option B

    Explanation :

    NA

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