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If you don't know what Khan Academy is, watch this. When it comes to GMAT prep, using Khan Academy can be a very effective tool for refreshing basic skills, but there's a catch - KA content is aligned …
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Working with my students I have noticed a couple of errors in the latest version of the Official Guide. When I investigated I found that there are a lot of errors - 60 by my count as well as 6 …
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(Note: Not drawn to scale) In triangle ABC, CE is perpendicular to AB and BD is perpendicular to to AC. If EC = 5 and BD = 3, what is the ratio of AC to AB? (A) 3 : 5 (B) 3 : 4 …
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I'm going to do a number of these posts. You can think of them as commentary on the 2016 Official Guide for GMAT Review. I'm going to use the abbreviations PS, DS, RC, CR, and SC for Problems Solving, …
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If , which of the following is a possible value of ? (A) (B) (C) (D) (E) …
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I’m going to do a number of these posts. You can think of them as commentary on the 2016Official Guide for GMAT Review. I’m going to use the abbreviations OG, PS, DS, RC, CR, and SC for Official …