Multiple Choice Questions on A box contain 4 white 3 blue and 2 black marbles If 2 marbles are picked up at random What is the pr........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A box contain 4 white 3 blue and 2 black marbles If 2 marbles are picked up at random What is the pr...........

Quantitative Aptitude ( CCS) Probability
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    A box contain 4 white, 3 blue and 2 black marbles. If 2 marbles are picked up at random. What is the probability that both of them are black ?

    20

    Incorrect Answer

    1/36

    Correct Answer

    1/22

    Incorrect Answer

    36

    Incorrect Answer
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    Explanation:

    Answer & Explanation
    Answer – 1/36
    Explanation :
    P = 2C2/9C2 = 1/36

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