Probability- What to do when it says then

Question

There are 6 orange marbles, 2 red marbles, 3 white marbles in a bag. Once a marble is drawn, it  is replaced (returned into the bag). Find the probability of each outcome.

1. a red then a white marble
2. A white then a green marble
3. a green then a not green marble
4. a red then an orange then a green marble 

Answer 1

1. (2(3)/36 = 1/6

 

Since no green marbles were mentioned, cases all the rest of these probabilities = 0.

 

I'm thinking that you accidentally omitted some # of green marbles.