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10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    Cards bearing numbers \[\text{2},\text{ 5},\text{4},...,\text{ 11}\]are kept in a bag. A card is drawn at random from the bag. The probability of getting a card with a prime number is:

    A) \[\frac{1}{2}\]

    B) \[\frac{2}{5}\]

    C) \[\frac{3}{10}\]

    D) \[\frac{5}{9}\]

    Correct Answer: A

    Solution :

    [a] No. of cards =10
    Cards with prime number \[=2,3,5,7,11\]
    \[\therefore \] Required probability \[=\frac{5}{10}=\frac{1}{2}\]


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