A bag contains in all 80 balls. some of them are white, some are blue and some are red. the number of white balls is 12 times the number of blue balls. the number of red balls is less than the number of white balls but more than the number of blue balls. If one ball is selected at random from the bag, what is the probability that it is Red?
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p(red balls)=30/80
=3/8.
therefore probability of red balls is 3/8
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