यदि \(X=\{2,4\}\) और \(Y=\{1,3,5\}\) है, तो (n\(Y\times X\)) कितना होगा?
If \(X=\{2,4\}\) and \(Y=\{1,3,5\}\), what is (n\(Y\times X\))?
Explanation opens after your attempt
Correct Answer
B. (6)
Concept
(n(Y)=3) and (n(X)=2), so (n\(Y\times X\)=3\times 2=6). The same multiplication rule applies even when set names change.
Why this answer is correct
The correct answer is B. (6). (n(Y)=3) and (n(X)=2), so (n\(Y\times X\)=3\times 2=6). The same multiplication rule applies even when set names change.
Exam Tip
(n(Y)=3) और (n(X)=2), इसलिए (n\(Y\times X\)=3\times 2=6)। नाम बदलने पर भी वही गुणा नियम लागू होता है।
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