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Source: Official Guide for the GMAT 12th Ed. Section 5.3 Problem Solving; #193

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If 75 percent of a class answered

If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly? 10%, 20%, 30%, 50%, 65%

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Mike McGarry, Magoosh Tutor

Nov 7, 2012 • Comment

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