10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    A card is drawn at random from a well shuffled deck of 52 playing cards. What is the probability of getting a black king? (CBSE 2020)

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

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

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

    D) \[\frac{9}{13}\]

    Correct Answer: B

    Solution :

    [b] Number of all possible outcomes = 52
    There are two black king out of 26 black cards.    
    \[\therefore \]  The number of favourable outcomes (black king) = 2
    So, P (black king)
    \[=\frac{\text{Favourable outcomes}}{\text{Possible outcomes}}=\frac{2}{52}=\frac{1}{26}\]


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