thanks smart_black_guy.
ssk, the questions vary based on the difficulty level at which you are answering. For the quant section, I found few questions to be as easy as compared to 75% of the
OG material.
OG does have some tricky questions interspersed throughout the quant section (in addition to the last 25 questions). Recommend that you trace them, nail them down and get a feel for the type of questions they are. For the verbal, I found
OG material to be adequate and maybe slightly tougher than on GMAT (I have heard differing opinions from other test takers on this)
In the quant section, I could clearly sense that the questions kept getting tougher. At a point they were tougher than any
OG material I have seen.
Its like you are mentally bench pressing a heavier load with each rep.
I personally just clicked through a couple of questions. I had no idea how to approach them.
I tried to be very accuate during the first half of the section and that slowed me down. I had to accelerate quite a bit in the second half (didn't randomly guess though, except for a couple). Finished both sections with half a minute to spare in each. Don't know if that strategy helped my score.
I highly recommend sticking to
OG, because I could sense a difference in the "feel" of the questions I got from
OG as compared to PR or Kaplan during my practice sessions. PR was too easy, while Kaplan quants on the CD were totally not representative. Used Kaplan Verbal Review and PR Verbal Review for Sentence correction though and that helped. One member of this forum rightly commented when he said "
OG is the bible for GMAT". Mistakes in the
OG can be quite revealing. At the very least, I would recommend solving all of
OG.
My opinion is that practice does help your score though it is an aptitude test. So, keep hitting away till the end and hope for the best.
Hope that helps.