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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-7

  • question_answer
    A bag contains 10 green balls and some white balls. If the probability of drawing the white ball from the bag is thrice that of a green ball, find the number of white balls in the bag.

    A)  15                               

    B)  20

    C)  25                               

    D)  30

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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