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by paul
May 19th, 2013, 10:22 pm
Forum: GMAT Preparation
Topic: GMAT Maths (Quantitative) Questions
Replies: 20
Views: 30949

I need to review Venn Diagrams

Hello, I'm preparing for GMAT and I cannot understand the topic of venn diagrams. Kindly review this question by and help me understand it better. If, in a certain school, 20 students study mathematics, 10 study science, and 7 study both, how many students study mathematics, science or ...