Question

A bag contains 5 white balls ,7 red balls, 4 black balls, and 2 blue balls,One ball is drawn at random from the bag,Find the probability that it is a WHITE OR BLUE​

Answer 1

No. of white balls = 5

No. of red balls = 7

No. of blue balls = 2

No. of black balls = 4

White balls + blue balls

= 5+2 balls = 7 balls

Total outcomes= 18

Let A be the event that the ball taken out is white or blue

P (A) = 7/18