There are a total of 6 green marbles.
Along with 3 blue and 3 red.
There is a total of 12 marbles in the bag.
This would mean that you would have 6/12 chance of getting a green marble.
If you simplify this then it would be 1/2 chance of getting a green marble.
3/12 and 3/12 chance of getting a blue or red marble.
Therefore, there is 1/2 a chance of drawing a green marble and 1/2 a chance of not drawing a green marble.
Hope this helps! :3
