यदि \(A\cup A^c=U\) और (n(A)=27), (n\(A^c\)=33) है, तो (n(U)) कितना होगा?
If \(A\cup A^c=U\), (n(A)=27), and (n\(A^c\)=33), what is (n(U))?
Explanation opens after your attempt
A. (60)
Concept
(A) and \(A^c\) are disjoint and form (U). Therefore (n(U)=27+33=60).
Why this answer is correct
The correct answer is A. (60). (A) and \(A^c\) are disjoint and form (U). Therefore (n(U)=27+33=60).
Exam Tip
(A) और \(A^c\) असंबद्ध होकर (U) बनाते हैं। इसलिए (n(U)=27+33=60) होगा।
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