Unfortunately I'm completely lost here
I'm not sure how else you can explain to me
Think of this as a die rolling problem. A die has 3 faces and it is rolled 3 times. What is the probability that each face will appear exactly once?
Ortherwise consider 2 cars and 2 rides and try writing all possibilities. It should be easier to see.
"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."
- Bernard Edmonds