यदि (n\(A\cup B\cup C\)=95), ठीक एक में (46), ठीक दो में (33) हैं, तो (n\(A\cap B\cap C\)) कितना है?
If (n\(A\cup B\cup C\)=95), exactly one has (46), and exactly two has (33), what is (n\(A\cap B\cap C\))?
Explanation opens after your attempt
A. (16)
Concept
Union equals exactly one plus exactly two plus all three, so all three is (95-46-33=16). These region categories are disjoint.
Why this answer is correct
The correct answer is A. (16). Union equals exactly one plus exactly two plus all three, so all three is (95-46-33=16). These region categories are disjoint.
Exam Tip
संघ (=) ठीक एक (+) ठीक दो (+) तीनों, इसलिए तीनों (95-46-33=16)। क्षेत्र श्रेणियां अलग-अलग होती हैं।
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