Multiple Choice Questions on Q1 Five people seat themselves indiscriminately around a round table The probability that two distin........... for CDS Exam Preparation

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Multiple Choice Questions

Q1 Five people seat themselves indiscriminately around a round table The probability that two distin...........

Quantitative Aptitude (CDS) Probability
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    Q1.Five people seat themselves indiscriminately around a round table. The probability that two distinguished persons will be next to each other is?

    1/3
     

    Incorrect Answer

    1/2
     

    Correct Answer

    2/3
     

    Incorrect Answer

    1/4

    Incorrect Answer
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    Explanation:

    Five people can seat themselves at a round table in 4! Ways.
    The number of ways in which two distinguished people will be next to each other
    = 2× 3!
    Hence, the required probability
    = 2×3!/4!
    = 1/2

    By: bhavesh kumar singh
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