यदि (n\(A\cup B\)=112), (n(A-B)=43) और (n(B-A)=37) है, तो (n\(A\cap B\)) कितना होगा?
If (n\(A\cup B\)=112), (n(A-B)=43) and (n(B-A)=37), then what is (n\(A\cap B\))?
Explanation opens after your attempt
Correct Answer
A. (32)
Concept
The union is the sum of three disjoint parts, so the intersection is (112-43-37=32). Count each separate region once in a Venn diagram.
Why this answer is correct
The correct answer is A. (32). The union is the sum of three disjoint parts, so the intersection is (112-43-37=32). Count each separate region once in a Venn diagram.
Exam Tip
संघ तीन अलग भागों का योग है, इसलिए प्रतिच्छेद (112-43-37=32) है। वेन आरेख में अलग क्षेत्रों को एक-एक बार गिनें।
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