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    5. A bag holds a total of 7 balls, consisting of 3 red balls and 4 black balls. If two balls are random

    Question

    A bag holds a total of 7 balls, consisting of 3 red

    balls and 4 black balls. If two balls are randomly drawn from the bag without replacement, what is the probability that both selected balls are red?
    A (4/21) Correct Answer Incorrect Answer
    B (2/7) Correct Answer Incorrect Answer
    C (3/14) Correct Answer Incorrect Answer
    D (1/7) Correct Answer Incorrect Answer

    Solution

    Required probability = 3C2 ÷ 7C2 = (3/21) = (1/7)

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