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10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    A bag contains 4 red, 5 black and 3 yellow balls. A ball taken out of the bag at random. Find the probability than the ball taken out is of yellow colour.

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

    B) \[\frac{1}{3}\]

    C) \[\frac{1}{4}\]

    D) \[\frac{1}{5}\]

    Correct Answer: C

    Solution :

    [c] Number of favourable outcomes = 3 as there are 3 yellow balls.
    Number of all possible outcomes
    \[=4(red)+5(black)+3(yellow)=12\]


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