यदि केवल (A=18), केवल (B=22), केवल (C=19), केवल \(A\cap B=9\), केवल \(B\cap C=8\), केवल \(C\cap A=7\) और \(A\cap B\cap C=6\) हैं, तो (n\(A\cup B\cup C\)) कितना है?
If only (A=18), only (B=22), only (C=19), only \(A\cap B=9\), only \(B\cap C=8\), only \(C\cap A=7\), and \(A\cap B\cap C=6\), what is (n\(A\cup B\cup C\))?
Explanation opens after your attempt
C. (89)
Concept
The union is the sum of all seven inside regions, (18+22+19+9+8+7+6=89). Add each region only once.
Why this answer is correct
The correct answer is C. (89). The union is the sum of all seven inside regions, (18+22+19+9+8+7+6=89). Add each region only once.
Exam Tip
संघ सातों अंदरूनी क्षेत्रों का योग है, (18+22+19+9+8+7+6=89)। हर क्षेत्र को केवल एक बार जोड़ें।
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