I have practiced the IR section of the OG13, and I solved the problems very well. Now, I am praticing the IR problems of the question bank of the GMAT Prep, including the question bank they sell on line, and I perceive them much more difficult. :s For example, there are some graphics that I have never used in my life!
The difference in the dificulty level between both sources is big.
Should I worry about that?, Is the 0G13 enough to get a good grade (7-8) in IR?, or should I invest more time in the GMAT Prep question bank?
I have personally felt that IR on the actual test was easier than those on the Question Pack 1 and GMAT Prep (I am yet to receive an IR score) but you should never underestimate official questions. You should try and review them if you can. They are a great exercise.
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