A bag contain 20 red balls and 30 green balls.find the probability of red balls and green balls
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total numbers of balls = 20 red balls + 30 green balls = 50 balls
the probability of red balls = total numbers of red balls /total numbers of balls
=20/50 = 2/5
the probability of red balls =total numbers of red balls /50
=30/50 = 3/5
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