यदि (n\(A\cup B\)=148), (n(A-B)=52) और (n(B-A)=43) है, तो (n\(A\cap B\)) कितना है?
If (n\(A\cup B\)=148), (n(A-B)=52), and (n(B-A)=43), what is (n\(A\cap B\))?
Explanation opens after your attempt
C. (53)
Concept
The union has three separate parts, so (n\(A\cap B\)=148-52-43=53). Count each separate region only once.
Why this answer is correct
The correct answer is C. (53). The union has three separate parts, so (n\(A\cap B\)=148-52-43=53). Count each separate region only once.
Exam Tip
संघ के तीन अलग भाग होते हैं, इसलिए (n\(A\cap B\)=148-52-43=53)। अलग क्षेत्रों को केवल एक बार गिनें।
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