Critical Reasoning

I have been working through the OG critical reasoning questions and I have been having difficulty with about half of the questions after number 108. Out of curiosity, what is the difficulty level of these problems? I scored a 41 a few months ago on the verbal section and most of my errors were made in SC.

I feel like after question 108 in the OG you must take a different approach to solving the questions, an approach I am obviously not familiar with. I am going to be picking up the powerscore cr book in a week or so, just wanted to get a better idea of the difficulty level of these problems.

yes the last 20 odd cr og questions are real test like,,get ur basics in place and then give them a shot, or u'll be getting most of them incorrect now and hence wasting a valuable set of real test-like questions.