New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A bag contains 9 black and 10 white balls. One ball is

    drawn at random. What is the probability that the ball drawn is white?
    A 11/19 Correct Answer Incorrect Answer
    B 10/17 Correct Answer Incorrect Answer
    C 12/19 Correct Answer Incorrect Answer
    D 10/19 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let number of balls = (9 + 10) = 19 Number of white balls = 10 P (drawing a white ball) = 10/19 

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