a bag contains 5 red balls and some Blue Balls if probability of drawing a blue ball from the bag is thrice that of the red ball find the number of blue balls in the bag
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It is obvious that since number of blue balls = 3 * number of red balls,
Number of blue balls = 3 * 5 = 15 balls
Total number of balls in the bag = 15 + 3 = 18
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