Question

    A bag contains 20 black and 22 white balls. One

    ball is drawn at random. What is the probability that the ball drawn is white?
    A 11/21 Correct Answer Incorrect Answer
    B 8/21 Correct Answer Incorrect Answer
    C 1/7 Correct Answer Incorrect Answer
    D 10/21 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let number of balls = (20 + 22) = 42
    Number of white balls = 22
    P (drawing a white ball) = 22/42 = 11/21

    Practice Next