यदि (n(A)=82), (n(B)=76), (n(C)=70), (n\(A\cup B\cup C\)=162), (n\(A\cap B\)=34), (n\(B\cap C\)=30) और (n\(C\cap A\)=27) है, तो (n\(A\cap B\cap C\)) कितना है?
If (n(A)=82), (n(B)=76), (n(C)=70), (n\(A\cup B\cup C\)=162), (n\(A\cap B\)=34), (n\(B\cap C\)=30), and (n\(C\cap A\)=27), what is (n\(A\cap B\cap C\))?
Explanation opens after your attempt
A. (15)
Concept
In the formula (162=82+76+70-34-30-27+x), so (x=15). Form an equation for the unknown central part.
Why this answer is correct
The correct answer is A. (15). In the formula (162=82+76+70-34-30-27+x), so (x=15). Form an equation for the unknown central part.
Exam Tip
सूत्र में (162=82+76+70-34-30-27+x) होगा, इसलिए (x=15)। अज्ञात केंद्रीय भाग के लिए समीकरण बनाएं।
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