A bag contains 30 white balls, 20 green balls and 50 yellow balls. A ball is drawn at random from the bag. Find the probability that the ball drawn is not yellow in colour.
(a) 0.8
(b) 0.3
(c) 0.7
(d) 0.5
Answers
Answered by
4
Total no. of balls = 30 + 20 + 50
= 100
If the ball drawn is not of yellow colour then it would be of either white colour or green colour
Therefore probability of not getting a yellow ball = ( sum of no. of white and green balls)/total no. of balls)
= (30 + 20)/100
= 50/100
= 1/2
= 0.5
So the probability will be 0.5.
Similar questions