यदि (n\(A\cap B\)=24) और (n\(A\cap B\cap C\)=9) है, तो केवल (A) और (B) में लेकिन (C) में नहीं कितने हैं?
If (n\(A\cap B\)=24) and (n\(A\cap B\cap C\)=9), how many are only in (A) and (B) but not in (C)?
Explanation opens after your attempt
C. (15)
Concept
For only (A) and (B), (24-9=15). A pairwise intersection includes the common part of all three.
Why this answer is correct
The correct answer is C. (15). For only (A) and (B), (24-9=15). A pairwise intersection includes the common part of all three.
Exam Tip
केवल (A) और (B) के लिए (24-9=15) होगा। जोड़ी वाले प्रतिच्छेद में तीनों का साझा भाग शामिल रहता है।
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