wysiwyg6000 wrote:I do have the GMAT Official Guide 12th Edition, but I'm not using it at this point. Basically, I first started with the GMAT For Dummies book and had thought that it gave me a good fundamental basis for the math. Unfortunately, it didn't. I did the math diagnostic test for the Official Guide and did horribly on it. The questions that it gave were a lot harder than what the Dummies book gave, so I got blown out of the water with that. That's when I decided to pick up the Kaplan 2010 study book about a week ago. I've gone through just about all of the math in that book and have found more confidence in my overall math skills, but the Data Sufficiency ones are still killing me. I reviewed my incorrect answers and found the following trends, would anyone be able to confirm them as a strategy?
-If given multiple linear equations, usually it'll be C or D
-If given explicit value amounts, like C = 2, usually it's useless info and that answer alone won't solve the question
-If given values that are squared, like (a-b)^2 = 4 or b^2 = 4, it's usually useless as well because squared values can be either positive or negative and we don't know
From my point of view it's very wrong trying to recognize some "trends" of correct answers. It's too risky and you will not get any skills... If I were you, I would spend time reading these data sufficiency questions, and try to see some logic in it. Although, I have some problems with it too, but when I find out the answer I realize that I coud have done it correctly if I would be focused enough... I wish you good luck!
