Thanks for the question! Actually, it’s not possible for W to be in sixth in this question (and actually, W can never be 6th in this entire game, no matter what you do). So we know that Q is going to come some time before R. Can W arrive sixth?
Well, let’s say that W comes in sixth. Based on the second rule, we know that Y is in fourth, since only Y or W can be fourth.
_ _ _ Y _ W _
But now look at the third rule! S comes after W but before Y. And that’s not possible here! We know that the other has to go
W—S—Y
But now that W is behind Y, this is impossible. So putting W in sixth means that we have to break rule 3, and so we can’t put W in sixth.
Hope this helps! Feel free to ask any other questions that you might have.
