Multiple Choice Questions on A box contains 5 blue and 5 white balls What is the probability of drawing 2 balls such that both ar........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A box contains 5 blue and 5 white balls What is the probability of drawing 2 balls such that both ar...........

Quantitative Aptitude ( CCS) Probability
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    A box contains 5 blue and 5 white balls. What is the probability of drawing 2 balls such that both are same in color?

    4/9

    Correct Answer

    4/7

    Incorrect Answer

    1/5

    Incorrect Answer

    7/12

    Incorrect Answer
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    Explanation:

    Answer & Explanation
    4/9
    Explanation: 
    Case 1: Both blue
    5C2 / 10C2
    Case 2: Both white
    5C2 / 10C2
    Add both cases.

    By: Sandeep Dubey
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