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A bag contains 6 red, 4 white and 8 blue balls. If three balls are drawn at random, find the probability that one is red, one is white and one is blue |
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Answer» Given: A bag containing 6 red, 4 white and 8 blue balls. By using the formula, P (E) = favourable outcomes / total possible outcomes Three balls are drawn so, we have to find the probability that one is red, one is white and one is blue. Total number of outcomes for drawing 3 balls is 18C3 n (S) = 18C3 = 816 Let E be the event that one red, one white and one blue ball is drawn. n (E) = 6C14C18C1 = 192 P (E) = n (E) / n (S) = 192 / 816 = 4/17 |
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