Happiepants,
I had my YOU session around the end of last year.
From what I can remember, it was 75 logical reasoning, predicting patterns, word matching questions, etc and 20 or 25 maths questions.
I would recommend practising as many IQ/logical reasoning questions online that you can get your hands on.
For the maths section, it was about a year 10 maths level I think. Basic algebra, Pythagoras, SOHCAHTOA, basic geometry questions, etc.
I would also recommend practising questions with limited time as I think the biggest reason some people do well and some people don't is the time constraint.
The YOU session was pretty easy though I wouldn't stress. Just do some practice questions, go in there relaxed, and you should be fine
