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A bag contain 3 red ball …

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A bag contain 3 red ball and 7 black ball .two balls are drawn at random without replacement. If the second selection is given to be red, what Is the probability that the first ball is red

    • Posted by Aamisha Sonaliya Aamisha 7 years, 9 months ago

    CBSE > Class 12 > Mathematics
    • 0 answers
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