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.
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
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
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