Multiple Choice Questions on What is the probability that a least two persons out of a group of three persons were born in the sa........... for NDA Exam Preparation

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Multiple Choice Questions

What is the probability that a least two persons out of a group of three persons were born in the sa...........

Mathematics (NDA) Probability
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    What is the probability that a least two persons out of a group of three persons were born in the same month (disregard year)?

    33 / 144

    Incorrect Answer

    17 / 72

    Correct Answer

    1 / 144

    Incorrect Answer

    2 / 9

    Incorrect Answer
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    Explanation:

    Probability of no. person born in the same month = 12×11×10 / 12×12×12 = 110/144

    Probability that at least two persons born in same month = 1 - 110 / 144 = 17 / 72

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