The question can be re phrased into, what is the probability that the last digit chosen is an even number:

This probability = 2/3

Therefore the combinations that are even = (2/3)*6 = **4**

All the possible combinations:

2, 3, 8

2, 8, 3

3, 2, 8

3, 8, 2

8, 2, 3

8, 3, 2

**4** out of 6 of them are even = { (2, 3, 8), (3, 2, 8), (8, 3, 2), (3, 8, 2) }