Hi, I am preparing for GMAT test, mostly the end of Nov. I just ordered OG GMAT, Math, and Verbal. I checked the comments on Kaplan
Math Review, stating many errors on the 6th ed. Many suggest MGMAT, 8 books. For those who took GMAT this year or currently reviewing, which resources do you think is the best approach. For 2.5 months preparation, is it enough?