Overlapping sets are a core component of GMAT Problem Solving and Data Sufficiency. This guided path will teach you to move beyond abstract formulas and use Venn diagrams to visually map out and solve even the most complex logic problems.
Start with the fundamental definitions of a set, a union, and an intersection. This is the basic vocabulary for all overlapping sets problems.
Understand the "double-counting trap" and see a step-by-step visualization of the formula for a two-set union.
Extend the formula to three sets. Understand why we add back the central intersection.
Master the four distinct regions of a standard two-set diagram. This visual tool is the key to solving most GMAT Venn diagram problems.
Level up by exploring the eight distinct regions of a three-set diagram. Master this to solve the most complex GMAT logic puzzles.
Apply the Inclusion-Exclusion formula to the unique GMAT Data Sufficiency format. Learn to identify when you have enough information to solve.
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