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प्रश्न
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is White
बेरीज
उत्तर
Total number of possible outcomes = 12 {3 red balls, 5 black balls & 4 white balls}
E ⟶ event of getting white ball
No. of favourable outcomes = 4 {4 white balls}
Probability, P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`
Probability, P(E) =4/12 =1/3
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