📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    Question

    A bag contains 5 red balls, 7 green balls, and 6 blue

    balls. Two balls are drawn at random. Find the probability that the two balls are green.
    A 8/51 Correct Answer Incorrect Answer
    B 7/51 Correct Answer Incorrect Answer
    C 6/51 Correct Answer Incorrect Answer
    D 5/51 Correct Answer Incorrect Answer
    E 3/17 Correct Answer Incorrect Answer

    Solution

    Number of ways of selecting two green balls = 7 Câ‚‚
    Total number of balls = 5 + 7 + 6 = 18
    Number of ways of selecting two balls = 18 C2â‚‚
    Probability = 7 Câ‚‚ Ă· 18 Câ‚‚ = (7 Ă— 6) Ă· (18 Ă— 17) = 42 Ă· 306 = 7/51

    Practice Next
    More Probability Questions

    Relevant for Exams:

    ask-question