a bag contains 18 balls out of which x are red.If one ball is drawn at random from the bag,what is the probability that it is not red .If 2 more red balls are put in the bag,find the new probability
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Probability of getting red balls = Total number of red balls/ total number of balls
Hence probability = x/18
If 2 more red balls are added then total red balls is X + 2
Total number of balls = 18 + 2 = 20
Hence new probability = x+2/20
Hence probability = x/18
If 2 more red balls are added then total red balls is X + 2
Total number of balls = 18 + 2 = 20
Hence new probability = x+2/20
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