A bag contains 4 white ball, 6 red balls, 7 black balls and 3 blue bal

1.	A bag contains 4 white ball, 6 red balls, 7 black balls and 3 blue balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is (i) white (ii) not black (iii) neither white nor black
Answer» Total number of balls = 20 (i) Number of White Balls = 4 Total Balls = 20 P(white) = 4/20 = 1/5 (ii) No black means the we have to pick white, red, blue balls only P(not black) = 13/20 (iii) neither black nor white means only white and red balls are left P(neither white nor black) = 9/20

A bag contains 4 white ball, 6 red balls, 7 black balls and 3 blue balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is (i) white (ii) not black (iii) neither white nor black

Answer»

Total number of balls = 20

(i) Number of White Balls = 4

Total Balls = 20

P(white) = 4/20 = 1/5

(ii) No black means the we have to pick white, red, blue balls only

P(not black) = 13/20

(iii) neither black nor white means only white and red balls are left

P(neither white nor black) = 9/20

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A bag contains 4 white ball, 6 red balls, 7 black balls and 3 blue balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is (i) white (ii) not black (iii) neither white nor black

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