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Discussion :: Probability

  1. A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -.
    2. A.
    8/15
    B.
    2/5
    C.
    3/5
    D.
    11/15
    E.
    7/15

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    Answer : Option E

    Explanation :

    Drawing two balls of same color from seven green balls can be done in ⁷C₂ ways.

    Similarly from eight white balls two can be drawn in â¸Câ‚‚ ways.

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