First off, every school is different in their acceptance rules, so you should check with your school to find out how they determine who they accept.
I have actually taken this test several times. Yes, there are 80 questions in both the Vocab & Science sections (but only 60 actually go toward your score) and there are 54 questions on the Math portion (only 40 go towards your score). It sounds like the pp needed a composite score of 96 (not percentage) and she was already accepted if she got at least that. My school on the other hand, your acceptance is pretty much determined by this test. You do have to have a GPA of at least 2.5, but as long as you have at least that, they don't use it to determine who gets in. You have to get at least in the mid 80's (percentage) to even have a chance. I had an 85% (composite score of 124) and while I may have gotten in with that, it was too close for comfort, so I took it again and ended up getting a 92% (composite score of 133). I only got a 61% in the vocab section, but did very well in the Math and Science, so that brought my score up!
On that note, I will not know until late October/early November whether or not I am accepted to the program for the Spring. Some schools let you know way ahead of time, but others don't.
You will have one hour to complete each section on the test. The best way to study for this is using the NLN Pre-Entrance Exam Study Guide (which you can do a search for online through google - it is available through Ebay/Amazon
This study guide, in my opinion, is the only way to study...don't waste your money on other study guides because those have way more information than what you will need to know for this test, or just incorrect information.
But definitely get the NLN study guide and study it over and over - it is closest to what the real test will be. But really, at least try to remember the stuff in the Math and Science section...read over the vocab section and try to do what it says...I think you either know it or you don't as far as the vocab goes.
GOOD LUCK!!! Hope that helped!