A bag contains in all 50 balls. Some of them are white, some are blue
and some are red. The number of white balls is 11 times the number of blue balls. The number of red balls is less than the number of white balls. Also, the number of red balls is more than the number of blue balls. If one of the balls is selected at random from the bag, what is the
probability that it is red ? ( plz show it step by step)
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Total no of balls =8
No.of ways drawing 2 balls out of 8= 8C2=(8*7)/2=28
Probability of drawing 2 balls of same colour =5C2 + 3C2= 13
Req prob = 13/28
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