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GMAT Data Sufficiency Problems
Questions 121 - 137, pg 288 - 289

Free online video lessons from khanacademy covering the practice questions in the data sufficiency math section of 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.

These video lessons are for GMAT Practice Questions 121 - 137 (starting from page 288 in the Study Guide)

Questions 121-124, pg. 288


Questions 125-128, pg. 288

Questions 129-131, pg. 289

Questions 132-134, pg. 289

Questions 135-137, pg. 289

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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