यदि (n\(A\cap B'\)=36), (n\(A'\cap B\)=44), (n\(A\cap B\)=25) और (n(\(A\cup B\)')=18) है, तो (n(U)) कितना है?
If (n\(A\cap B'\)=36), (n\(A'\cap B\)=44), (n\(A\cap B\)=25) and (n(\(A\cup B\)')=18), then what is (n(U))?
Explanation opens after your attempt
A. (123)
Concept
The sum of the four disjoint regions is (36+44+25+18=123). The universal set includes both inside and outside regions.
Why this answer is correct
The correct answer is A. (123). The sum of the four disjoint regions is (36+44+25+18=123). The universal set includes both inside and outside regions.
Exam Tip
चारों अलग क्षेत्रों का योग (36+44+25+18=123) है। सार्वत्रिक समुच्चय में अंदर और बाहर दोनों क्षेत्र आते हैं।
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