GMAT Data Sufficiency Problems
Questions 51 - 72, pg 281 - 283
This series of videos by khanacademy will show you how to answer the practice questions in the data sufficiency math section of the
The Official Guide for GMAT Review
It would be best that you go through the GMAT practice test questions in the Study Guide first and then look at the videos for the questions that you might need help in.
The videos on this lesson are for GMAT Practice Questions 51 - 72 (starting from page 281 in the Study Guide)
51-54, pgs. 281-282
Questions 55-58, pg. 282
Questions 59-62, pg. 282
Questions 63-68, pgs. 282-283
Questions 68-72, pg. 283
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