Brian Galvin, Veritas Prep's Director of Academic Programs, talks about the two ways the GMAT can fool you on Data Sufficiency problems. Data sufficieny problems are those kind of problems that look quite tricky but are easy once you know the loophole. Figuring out that is the main job and this video tutorial aims at training your mind to watch out for those tricks.
Source: GMAT Prep
Rating: 7/10
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