In this video, Jess and Rich cover helpful strategies for solving Data Sufficiency questions involving systems of equations. There are three sample problems to try on your own: pause the video at 00:37, 5:30, and 8:00 to try your hand at each one. After you’ve given each one a shot, stay tuned for Jess and Rich’s step-by-step explanation of the best way to find the answer for each one. You’ll definitely learn some helpful tips and shortcuts along the way.
For more Data Sufficiency strategies, tune in to the rest of this quantitative strategy lesson and stay tuned for future videos!
Read the full article: GMAT On Demand: Three Classic DS Problems Involving Systems of Equations
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