Where to find answer explanations for Olive Lehmann’s 75 questions?

Oliver Lehmann’s 75 questions PMP mock exam paper is quite a good FREE tool to understand your understanding of the PMBOK® Guide materials in an online simulated environment. On the upper left hand corner of every question, there is a red box reads “See references” — this is actually the link to the answer guide of this mock exam. You will have to read the relevant sections of the project management titles to understand the reasons for the correct answers.

For your convenience, the URL is posted below:
http://www.oliverlehmann.com/pmp-self-test/75-free-questions_answers.htm

Wish you PMP success!