यदि (n(U)=50) और (n(A')=22) है, तो (n(A)) ज्ञात कीजिए।
If (n(U)=50) and (n(A')=22), find (n(A)).
Explanation opens after your attempt
A. (28)
Concept
(n(A)=n(U)-n(A')=50-22=28). Even when complement is given, subtract from the total.
Why this answer is correct
The correct answer is A. (28). (n(A)=n(U)-n(A')=50-22=28). Even when complement is given, subtract from the total.
Exam Tip
(n(A)=n(U)-n(A')=50-22=28)। पूरक दिया हो तो भी कुल में से घटाएं।
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