यदि \(|A\cup B|=70\), \(|A\setminus B|=25\) और \(|B\setminus A|=30\), तो \(|A\cap B|\) क्या है?
If \(|A\cup B|=70\), \(|A\setminus B|=25\) and \(|B\setminus A|=30\), what is \(|A\cap B|\)?
Explanation opens after your attempt
Correct Answer
A. (15)
Concept
The union is the sum of \(A\setminus B\), \(B\setminus A\), and \(A\cap B\). Hence \(|A\cap B|=70-25-30=15\).
Why this answer is correct
The correct answer is A. (15). The union is the sum of \(A\setminus B\), \(B\setminus A\), and \(A\cap B\). Hence \(|A\cap B|=70-25-30=15\).
Exam Tip
संघ \(A\setminus B\), \(B\setminus A\), और \(A\cap B\) का योग है। अतः \(|A\cap B|=70-25-30=15\) है।
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