यदि (n(A)=35), (n(B)=27) और (n\(A\cup B\)=50), तो (n(A-B)) क्या है?
If (n(A)=35), (n(B)=27), and (n\(A\cup B\)=50), what is (n(A-B))?
Explanation opens after your attempt
C. (23)
Concept
First (n\(A\cap B\)=35+27-50=12). Therefore (n(A-B)=35-12=23).
Why this answer is correct
The correct answer is C. (23). First (n\(A\cap B\)=35+27-50=12). Therefore (n(A-B)=35-12=23).
Exam Tip
पहले (n\(A\cap B\)=35+27-50=12) है। इसलिए (n(A-B)=35-12=23)।
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