A bag contains 6 red marble and some Blue Balls if the probability of drawing a blue ball from the bag in twice that of a red ball find the number of blue ball in the bag
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Step-by-step explanation:
12 blue balls
probability of red balls = 6/total no of balls
probability of blue balls = 12/total no of balls
probability of red + blue = 6/total +12/total = 1
18/ total = 1
total no of balls = 18
blue balls = 18 - 6 = 12
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