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      Question

      A bag has 6 red balls, 6 blue balls and 8 green balls. Two

      balls are picked randomly. What is the probability that at least one of them is green?
      A 63/95 Correct Answer Incorrect Answer
      B 31/95 Correct Answer Incorrect Answer
      C 62/95 Correct Answer Incorrect Answer
      D 61/95 Correct Answer Incorrect Answer
      E 60/95 Correct Answer Incorrect Answer

      Solution

      Total balls = 6 + 6 + 8 = 20
      Non-green balls = 6 + 6 = 12
      Required probability = 1 - (12/20) Γ— (11/19)
      = 1 - (132/380)
      = 1 - (33/95)
      = 62/95

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