This question is from probability chapter class 10th ncert/icse both boards included in this question A bag is given which contains 10 red, 5 blue and 7 green balls. When a ball is drawn at random. You have to find the probability of this ball being not a blue ball. Here i am not able to understand how can find the probability of **not a blue** ball. Do i have to find the probability of other remaining balls i am not sure.

AnilSinghBoraGuru

# A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball being not a blue ball.

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I hope this helps!!!!!!