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Archive | Sets

GMAT Practice Problems: Sets

Here are four reasonably challenging problems about sets. 1) At a certain school of 200 students, the students can study French, Spanish, both or neither. Just as many study both as study neither.  One quarter of those who study Spanish also study French.  The total number who study French is 10 fewer than those who […]

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GMAT Sets: Double Matrix Method

Learn this powerful method for unlocking devilishly complicated problems about sets.    Practice questions First, try these challenging 700-level practice questions. 1) At Veridux Corporation, there are 250 employees. Of these, 90 are female, and the rest are males.  There are a total of 40 managers, and the rest of the employees are associates.  If […]

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