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***EDIT***CLARIFYING: This is for Math Workout for the New GRE 2nd edition by Princeton Review (ISBN 15558-9692) I've found three, but the first one I didn't mark, however the other two as of page 174 are the following: p129&131 Quant Comp problem: w, x, y, & z are consecutive, positive, even integers and w < x < y < z QA: 2(w+x) +2 QB: y + z - 2 ----- My answer: QA is greater Because: tried 2,4,6,8 AND 12,14,16,18 ---- Their answer: cannot be determined Because: 2,4,6,8 AND 20,22,24,26 "...Quantity A is greater, so eliminate answer choices ( and ©. Now try greater numbers, like 20,22,24, and 26. Quantity A becomes 2(20+22) +2, or 86, while Quantity B is 24+26-2, or 48. Quantity A has become greater, so there is no definitive solution. The answer is (D)." *Deductive skills FAIL* ---- AND p172&173 Q7 Using a pie chart: How many people who were polled in October identified themselves as members of Party Y. ---- My answer: 687 (Unlisted) Because: 38% of 1810 polled according to October chart on p172 ---- Their answer: © 603 Because: "The November pie is on the far right and 45% of the 1340 people said they belonged to party Y..." *QUESTION WRITE/ANSWER INCOMPATIBLE* Unless I'm completely and utterly just wrong.