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      Question

      A bag contains 9 blue balls, 16 red balls, and 20 green

      balls. One ball is drawn at random. Find the probability that the ball drawn is either blue or green.
      A 17/45 Correct Answer Incorrect Answer
      B 23/45 Correct Answer Incorrect Answer
      C 16/25 Correct Answer Incorrect Answer
      D 29/45 Correct Answer Incorrect Answer
      E none of these Correct Answer Incorrect Answer

      Solution

      ATQ, Total number of balls in the bag = 9+ 16 + 20 = 45 Probability of selecting 1 blue ball out of all the balls, P(E1) = (9/45) Probability of selecting 1 green ball out of all the balls, P(E2) = (20/45) The probability of drawing either blue ball or green ball = P(E1) + P(E2) = (9/45) + (20/45) = (29/45)┬а

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