I ran out of time on the IR section. The GMATPrep software and example questions on mba.com didn't prepare me for every question type. I can't speak about OG 13
because I haven't seen it.
Without disclosing any content of the exam, I suggest you prepare not only for data-table questions, but also for critical reasoning/logic questions. For example, the following is a logic problem:
Four sandwich-makers will be chosen from twelve to make sandwiches. If Joe makes sandwiches, Jack or John, but not both, will make sandwiches. If Jim makes sandwiches, Jerry or Jake, but not both, will make sandwiches. If Julian makes sandwiches, Jerome or Jude, but not both, will make sandwiches. Jeremy won't make sandwiches with Jack or John.
Can you identify which combinations of four sandwich-makers are possible?
The thing is, the if-then statements only go one way. If Jerry makes sandwiches, it doesn't necessarily mean Jim will make sandwiches. But he might! And it might be tempting to say Jack and John is either-or (meaning only one, but not both, can make sandwiches)... but actually Jack and John can
make sandwiches together if Joe's not there.
Side note: I could really go for a sandwich right now.