I think I'm starting to understand the purpose of these "experimental questions". And please correct me if I am wrong.
It seems to me that the GMAT is a test that is intentionally designed to be nearly impossible to complete if one attempts to solve all of the problems properly. The purpose being that the GMAT wants to see who is smart enough to recognize questions that are designed to be nearly impossible to answer. The test wants the taker to skip these (they do not count towards the actual score).
I imagine that the test could also keep track of how much time is spent on these experimental questions and could penalize/add points to takers who try to solve rather than skip these questions (the GMAT is also allegedly a test of time management, rewarding/penalizing takers in this regard would support that claim) .
Would I be correct here? I havn't read anything that suggests that this is the case, I'm just thinking out loud.
If so, is there anything that discusses how to identify these questions that the test wants us to skip?