Q. 285.0( 3 Votes )

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) =

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

P(not black) =

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

P(neither white nor black) =

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.