यदि केवल (A=18), केवल \(A\cap B=12\), केवल \(A\cap C=10\) और \(A\cap B\cap C=6\) हैं, तो (n(A)) कितना होगा?
If only (A=18), only \(A\cap B=12\), only \(A\cap C=10\), and \(A\cap B\cap C=6\), what is (n(A))?
Explanation opens after your attempt
C. (46)
Concept
The sum of all inside parts of (A) is (18+12+10+6=46). The total of a set comes from all regions of its circle.
Why this answer is correct
The correct answer is C. (46). The sum of all inside parts of (A) is (18+12+10+6=46). The total of a set comes from all regions of its circle.
Exam Tip
(A) के सभी अंदरूनी भागों का योग (18+12+10+6=46) है। किसी समुच्चय की कुल संख्या उसके पूरे वृत्त के भागों से मिलती है।
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