यदि \(A=\{10,20,30,40\}\) और \(B=\{20,40,60\}\) है, तो \(A\cap B\) में कितने अवयव हैं?
If \(A=\{10,20,30,40\}\) and \(B=\{20,40,60\}\), how many elements are in \(A\cap B\)?
Explanation opens after your attempt
B. (2)
Concept
The common elements are (20) and (40), so the number is (2). In intersection, count only common elements.
Why this answer is correct
The correct answer is B. (2). The common elements are (20) and (40), so the number is (2). In intersection, count only common elements.
Exam Tip
सामान्य अवयव (20) और (40) हैं, इसलिए संख्या (2) है। प्रतिच्छेद में केवल समान अवयव गिने जाते हैं।
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