Question

a bag contain 10 red ball,5 blue ball and 7 green ball one drawn randomly. what is the probability of not a blue ball.​

Answer 1

No. of red ball = 10

No. of blue ball = 5

No. of green balls = 7

If a ball is drawn out of 22 balls (5 blue + 7 green + 10 red),

then the total number of outcomes are

n(S) = 22

hope it helps