Question

24.A bag contains 5 red, 4 white and 3 black balls. If a ball is drawn from the bag at random, then the probability of the ball being not black is​

Answer 1

Step-by-step explanation:

Total balls or Total outcomes= 5+4+3= 12.

Red balls= 5

White balls = 4

Black balls= 3

So P(not black ball)= 5+4/12

9/12= 3/4

Answer is 3/4

Please mark my answer as brainliest..