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 73-76, pg. 284
Questions 77-79, pg. 284
Questions 80-83, pg. 284
Questions 84-86, pg. 285
Questions 87-90, pg. 285
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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