Math Problem Statement
170 परिवारों के एक सर्वेक्षण में 115 कॉफी, 110 चाय और 130 दूध पीते हैं। इसके अलावा, 85 कॉफी और दूध, 75 कॉफी और चाय, 95 चाय और दूध, 70 तीनों पीते हैं। पता करें कि कितने लोग कम से काम दो चीजों का सेवन करते है
Solution
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Math Problem Analysis
Mathematical Concepts
Set Theory
Venn Diagram
Union and Intersection of Sets
Formulas
Number of people consuming at least two drinks = |A ∩ B| + |A ∩ C| + |B ∩ C| - 2 × |A ∩ B ∩ C|
Theorems
Principle of Inclusion and Exclusion
Suitable Grade Level
Grades 9-12
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