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JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    Two cards are drawn from a pack of 52 cards. What is the probability that at least one of the cards drawn is an ace

    A)                 \[\frac{33}{221}\]

    B)                 \[\frac{188}{221}\]

    C)                 \[\frac{1}{26}\]    

    D)                 \[\frac{21}{221}\]

    Correct Answer: A

    Solution :

               Required probability is \[1-P\] (no ace)                                                 \[=1-\frac{48}{52}.\frac{47}{51}\]\[=\frac{663-564}{13\,.\,51}=\frac{99}{13\,.\,51}=\frac{33}{221}.\]


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