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JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    From a pack of 52 cards one card is drawn at random, the probability that it is either a king or a queen is

    A)                 \[\frac{1}{13}\]    

    B)                 \[\frac{2}{13}\]

    C)                 \[\frac{3}{13}\]    

    D)                 \[\frac{4}{13}\]

    Correct Answer: B

    Solution :

               Probability of getting king \[=\frac{4}{52}=\frac{1}{13}\]            Probability of getting queen \[=\frac{4}{52}=\frac{1}{13}\]                 \[P\] (king or queen) \[=\frac{1}{13}+\frac{1}{13}=\frac{2}{13}.\]


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