Question

A bag contains 12 red 15 white and 8 black , if a ball is drawn at random what is the probability that the bag is a) A black ball (b) Not a white ball .

Answer 1

A bag contains 12 red 15 white and 8 black , if a ball is drawn at random what is the probability that the bag is a) A black ball (b) Not a white ball .
a)8/35
b)4/7

Answer 2

Hey dear friend

Total no. of balls=white+red+black
=15+12+8
=35

(i)total no. of black ball/total no. of balls
= 8/35

(ii)Total no. of red &black ball/total no. of balls
=>20/35=4/7

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