That seems to be on the high side for number of questions wrong - and still getting 700. Even Q47 for 13 wrong seems on the high side.
Yet, the level of difficulty of those questions matters - and experimental ones are removed from the calculation on the real exam.
Well, save the other GMATPrep tests for the week before your real test.
Try the GMAT Pill Practice test here:
www.gmatpill.com/gmat-practice-test/practice-testThat said, focus less on the scoring algorithm and more on doing what you can to improve so you answer as many correct as you can -- in as little time as posssible -- ideally with minimal, but effective study time.
Zeke Lee
www.gmatpill.com