better to guess or not finish?

[mayonnai5e]

OK, say you get near the end of the gmat and you know you're not going to finish the section. Would it be better to just randomly guess at the last few questions or just leave them blank? What is the penalty for not finishing vs. the penalty for missing a bunch of questions at the end?

search these forums for answers to your last questions, but it is definitely better to randomly guess than to leave questions unanswered. why? if you leave them blank you have a 100% chance ot get them wrong (and that will be taken into account in your score) whereas randomly guessing gives you a 20% chance to get it right. always guess. always finish.