Question

There are 5 white, 7 red. 4 black and 2 blue identical balls in a box. One ball is selected
at random from the box. Find the probability
that the ball is (1) either black or white (2) red (3) not blue.​

Answer 1

Answer:

1. 9/18= 1/2

2.7/18

3.16/18. =2/3