तीन समुच्चयों में केवल (A=19), केवल (B=23), केवल (C=17), केवल \(A\cap B=8\), केवल \(B\cap C=10\), केवल \(C\cap A=6\) और \(A\cap B\cap C=5\) हैं। (n\(B\cup C\)) कितना होगा?
In three sets, only (A=19), only (B=23), only (C=17), only \(A\cap B=8\), only \(B\cap C=10\), only \(C\cap A=6\), and \(A\cap B\cap C=5\). What is (n\(B\cup C\))?
Explanation opens after your attempt
B. (61)
Concept
\(B\cup C\) includes parts inside (B) or (C), (23+17+8+10+6+5=69). Notice that only (A) is not included.
Why this answer is correct
The correct answer is B. (61). \(B\cup C\) includes parts inside (B) or (C), (23+17+8+10+6+5=69). Notice that only (A) is not included.
Exam Tip
\(B\cup C\) में (B) या (C) के अंदर आने वाले भाग जुड़ेंगे, (23+17+8+10+6+5=69)। ध्यान दें कि केवल (A) इसमें नहीं आएगा।
Login to save your score, XP, coins and progress.
