A bag contains 7black,5red,3white balls.a ball is drawn from the bag at random find the probability that the ball drawn is 1)red,2)black or white, 3)not black.
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Step-by-step explanation:
1) 1 by 5
2 black 1 by 15
white 1 by 15
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Step-by-step explanation:
1. Probability of red balls
Total no. of red balls = 5
Total balls = 15
Probability = 5 = 1/3
15
2. Probability of black balls
Total no. of black and white balls = 10
Total no. of balls. = 15
Probability. = 10/15
=2/3
3. Probability of not black
Total no. of black balls = 7
Total no. of balls =15
Probability = 7/15
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