यदि केवल (A) में (38), केवल (B) में (35), केवल (C) में (29), ठीक दो समुच्चयों में कुल (47) और तीनों में (14) तत्व हैं, तो (n\(A\cup B\cup C\)) कितना है?
If only (A) has (38), only (B) has (35), only (C) has (29), exactly two sets have total (47), and all three have (14) elements, then what is (n\(A\cup B\cup C\))?
Explanation opens after your attempt
A. (163)
Concept
The union is the sum of all disjoint regions (38+35+29+47+14=163). Do not add separate Venn regions twice.
Why this answer is correct
The correct answer is A. (163). The union is the sum of all disjoint regions (38+35+29+47+14=163). Do not add separate Venn regions twice.
Exam Tip
संघ सभी अलग क्षेत्रों का योग (38+35+29+47+14=163) है। अलग वेन क्षेत्रों को दोबारा न जोड़ें।
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