यदि (n(U)=85) और (n\(A\cup B\)=56), तो न (A) न (B) में कितने अवयव हैं?
If (n(U)=85) and (n\(A\cup B\)=56), how many elements are in neither (A) nor (B)?
Explanation opens after your attempt
A. (29)
Concept
The number in neither (A) nor (B) is (85-56=29). It is outside both circles but inside (U).
Why this answer is correct
The correct answer is A. (29). The number in neither (A) nor (B) is (85-56=29). It is outside both circles but inside (U).
Exam Tip
न (A) न (B) की संख्या (85-56=29) है। यह दोनों वृत्तों के बाहर लेकिन (U) के अंदर का क्षेत्र है।
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