यदि केवल (A) में (18), \(A\cap B\) में (7), और केवल (B) में (14) अवयव हैं, तो (n\(A\cup B\)) क्या है?
If only (A) has (18), \(A\cap B\) has (7), and only (B) has (14) elements, what is (n\(A\cup B\))?
Explanation opens after your attempt
C. (39)
Concept
The union includes all three regions, so (18+7+14=39). In a Venn diagram, add each region once.
Why this answer is correct
The correct answer is C. (39). The union includes all three regions, so (18+7+14=39). In a Venn diagram, add each region once.
Exam Tip
संघ में तीनों क्षेत्र आते हैं, इसलिए (18+7+14=39)। वेन आरेख में हर क्षेत्र को एक बार जोड़ें।
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