Question

A bag contains 5 red balls 8 white balls 4 green balls and 7 black balls if 1 ball is drawn find the find the probability that its is (1)black(2)red (3)not green

Answer 1

(1)7/24
(2)5/24
(3)21/24....

Answer 2

Total number of balls are 5+8+4+7
which is 24
white ball there are 8
so probability is 8/24.
green balls there are 4
probability will be 4/24
not a read ball means 
8+4+7
which is 19
it will be 19/24

hope this helps you out!