Question

    Three Marbles and three balls are kept in a box. If two

    items are chosen at random, Find the probability that one is marble and another one is ball?
    A 3/5 Correct Answer Incorrect Answer
    B 1/5 Correct Answer Incorrect Answer
    C 2/5 Correct Answer Incorrect Answer
    D 3/7 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total probability = 6C2 = 15 Probability that one is marble and another one is ball = 3C1 × 3C1 = 9 probability = 9/15 = 3/5

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