यदि \(A\subseteq B\), (n(A)=46), (n(B)=108) और (n(U)=150) है, तो (n\(B^c\)) कितना होगा?
If \(A\subseteq B\), (n(A)=46), (n(B)=108), and (n(U)=150), what is (n\(B^c\))?
Explanation opens after your attempt
Correct Answer
A. (42)
Concept
\(B^c\) contains elements of (U) that are not in (B), so (150-108=42). The subset information is a trap here.
Why this answer is correct
The correct answer is A. (42). \(B^c\) contains elements of (U) that are not in (B), so (150-108=42). The subset information is a trap here.
Exam Tip
\(B^c\) में (U) के वे तत्व हैं जो (B) में नहीं हैं, इसलिए (150-108=42)। उपसमुच्चय जानकारी यहां जाल है।
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