Sets: Minimum & Maximum Intersection of 3 Sets Trick (No V Diagram!)
QDS Pro - CAT, GMAT & Aptitude Prep
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Sets: Minimum & Maximum Intersection of 3 Sets Trick (No V Diagram!)
7 просмотров · 5 дней назад
QDS Pro - CAT, GMAT & Aptitude Prep
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7 просмотров · 5 дней назад
Struggling with Maxima-Minima questions in Set Theory / Venn Diagrams? This clip breaks down Case 1: When students must choose at least one option out of three (like Tea, Coffee, Milk) — and shows you a faster, foolproof method than drawing a 3-set Venn diagram.
You'll learn:
✅ How to find the minimum percentage of students who prefer all three options
✅ How to find the maximum percentage of students who prefer all three options
✅ The real number line trick — a much simpler alternative to messy 3-set Venn diagrams
✅ The complement shortcut: using A' + B' + C' to instantly get the minimum intersection
✅ Why the smallest given value directly gives you the maximum possible intersection
✅ A worked example with Tea (75%), Coffee (88%), and Milk (62%) solved step-by-step, cross-verified using both the number line method and the traditional Venn diagram approach
This is a must-watch for anyone preparing for CAT, competitive exams, aptitude tests, or Set Theory chapters where Venn diagram-based maxima-minima questions are frequently asked. The number line approach shown here will save you precious time and reduce confusion during the exam, especially when only limited data is given (just three percentages, no other details).
If you've ever gotten confused trying to fit values into a 3-set Venn diagram for "at least one" type questions, this shortcut will change the way you solve these problems for good.
📌 This clip covers only Case 1 (at least one choice) of the Maxima-Minima concept in Set Theory. Other cases are covered in separate clips — watch this space for more!
Perfect for students revising Set Theory, Venn Diagrams, and Maxima-Minima concepts for quantitative aptitude and logical reasoning sections.