यदि (n(A)=16), (n(B)=22), और (n\(A\cap B\)=7), तो केवल (B) में कितने अवयव हैं?
If (n(A)=16), (n(B)=22), and (n\(A\cap B\)=7), how many elements are only in (B)?
Explanation opens after your attempt
B. (15)
Concept
The number only in (B) is (22-7=15). In the Venn diagram, separate the common part of circle (B).
Why this answer is correct
The correct answer is B. (15). The number only in (B) is (22-7=15). In the Venn diagram, separate the common part of circle (B).
Exam Tip
केवल (B) की संख्या (22-7=15) है। वेन आरेख में (B) वृत्त का साझा भाग अलग कर दें।
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