A bag contains 4 red balls, 3 blue balls, and 2 green balls. If one ball is drawn at random, what is the probability of drawing a green or red ball?
*
2/5
1/3
2/3
3/9
The probability of drawing a green or red ball can be calculated by adding the probabilities of drawing a green ball and a red ball:
Probability of drawing a green ball = 2/9
Probability of drawing a red ball = 4/9
Probability of drawing a green or red ball = Probability of drawing a green ball + Probability of drawing a red ball
= 2/9 + 4/9
= 6/9
= 2/3
Therefore, the probability of drawing a green or red ball is 2/3.