Some concepts on the GMAT are absolute, while others can be a little nebulous. For example, the fact that there are 37 quantitative questions and 41 verbal questions is uncontestable. However, not all issues are as cut and dry.
I’ve read a strategy guide that recommended spending extra time on the first 10 questions because they’re worth more. I’ve read other guides saying that all the questions are weighed equally. Of course none of these books are the Official Guide, but even when I put it down, you know I’ll be back. When studying for a known test like the GMAT, it’s important to know what to look for and what to avoid (and also to be literate).