Knowing how to answer hard GMAT questions isn't always enough to get a really high GMAT score. You also need to know how to do those questions FASTER. Time management is crucial on the GMAT. In this illustration, expert GMAT instructor Brett Ethridge not only shows you how to answer a difficult GMAT geometry question, but also how to use logic and look for shortcuts to arrive at the correct answer more quickly.
Source: GMAT Prep
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