यदि (n(A)=35), (n(B)=27) और (n\(A\cup B\)=50) है, तो (n\(A\cap B\)) कितना है?
If (n(A)=35), (n(B)=27), and (n\(A\cup B\)=50), what is (n\(A\cap B\))?
Explanation opens after your attempt
A. (12)
Concept
By the formula, (n\(A\cap B\)=35+27-50=12). When union is given, find the common part using the formula.
Why this answer is correct
The correct answer is A. (12). By the formula, (n\(A\cap B\)=35+27-50=12). When union is given, find the common part using the formula.
Exam Tip
सूत्र से (n\(A\cap B\)=35+27-50=12)। संघ ज्ञात हो तो सामान्य भाग घटाकर नहीं बल्कि सूत्र से निकालें।
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