Question

A bag contains 5 red balls 6 white balls 7 green balls 8 black balls. one ball is drawn at random for the bag .find the probability that the ball drawn is 1)white 2)black or red 3)not white 4)neither white nor black ​

Answer 1

when one ball drawn at random for the bag

so 26-1=25

1) white = 6/25

2) black or red = 13/25

3) not white = 20/25 = 4/5

4) --------