Math Problem Statement
Among a group of students, 50 played Cricket, 50 played hockey and 40 played Volley ball, 5 played both cricket and hockey, 10 played both hockey and Volleyball, 5 played Cricket and Volleyball and 10 played all three. If every student played at least one game, find the number of students and how many Played only cricket, only hockey and only Volley ball.
Solution
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Math Problem Analysis
Mathematical Concepts
Set Theory
Inclusion-Exclusion Principle
Formulas
N = |C| + |H| + |V| - |C ∩ H| - |H ∩ V| - |C ∩ V| + |C ∩ H ∩ V|
Only Cricket = |C| - |C ∩ H| - |C ∩ V| + |C ∩ H ∩ V|
Only Hockey = |H| - |C ∩ H| - |H ∩ V| + |C ∩ H ∩ V|
Only Volleyball = |V| - |C ∩ V| - |H ∩ V| + |C ∩ H ∩ V|
Theorems
Inclusion-Exclusion Principle
Suitable Grade Level
Grades 10-12
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