यदि (n(B-A)=8) और (n\(A\cap B\)=4), तो (n(B)) क्या है?
If (n(B-A)=8) and (n\(A\cap B\)=4), what is (n(B))?
Explanation opens after your attempt
C. (12)
Concept
Set (B) includes only (B) and the common part, so (n(B)=8+4=12). Count the whole (B) circle in the Venn diagram.
Why this answer is correct
The correct answer is C. (12). Set (B) includes only (B) and the common part, so (n(B)=8+4=12). Count the whole (B) circle in the Venn diagram.
Exam Tip
(B) में केवल (B) और साझा भाग आते हैं, इसलिए (n(B)=8+4=12)। वेन आरेख में पूरे (B) वृत्त को गिनें।
Login to save your score, XP, coins and progress.
