यदि केवल (A=11), केवल (B=13), केवल (C=9), केवल \(A\cap B=5\), केवल \(B\cap C=4\), केवल \(C\cap A=6\) और \(A\cap B\cap C=3\) हैं, तो (n\(A\cup B\cup C\)) कितना है?
If only (A=11), only (B=13), only (C=9), only \(A\cap B=5\), only \(B\cap C=4\), only \(C\cap A=6\), and \(A\cap B\cap C=3\), what is (n\(A\cup B\cup C\))?
Explanation opens after your attempt
A. (51)
Concept
The union is the sum of all seven inside regions, (11+13+9+5+4+6+3=51). Add each separate region only once.
Why this answer is correct
The correct answer is A. (51). The union is the sum of all seven inside regions, (11+13+9+5+4+6+3=51). Add each separate region only once.
Exam Tip
संघ सभी सात अंदरूनी क्षेत्रों का योग है, (11+13+9+5+4+6+3=51)। अलग-अलग क्षेत्रों को केवल एक बार जोड़ें।
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