यदि \(A\subseteq U\), (n(U)=60), (n(A)=28), और (n(A')=x) है, तो (x) का मान क्या है?
If \(A\subseteq U\), (n(U)=60), (n(A)=28), and (n(A')=x), what is the value of (x)?
Explanation opens after your attempt
B. (32)
Concept
Elements of the complement are in (U) but not in (A). Therefore (x=60-28=32).
Why this answer is correct
The correct answer is B. (32). Elements of the complement are in (U) but not in (A). Therefore (x=60-28=32).
Exam Tip
पूरक के तत्व (U) में होते हैं पर (A) में नहीं होते। इसलिए (x=60-28=32) है।
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