यदि \(A=\{2,3,5\}\) और \(B=\{1,2,3\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x>y)?
If \(A=\{2,3,5\}\) and \(B=\{1,2,3\}\), how many pairs ((x,y)) in \(A\times B\) satisfy (x>y)?
Explanation opens after your attempt
A. (6)
Concept
The valid pairs are ((2,1),(3,1),(3,2),(5,1),(5,2),(5,3)). In inequalities, reversing order can change the answer.
Why this answer is correct
The correct answer is A. (6). The valid pairs are ((2,1),(3,1),(3,2),(5,1),(5,2),(5,3)). In inequalities, reversing order can change the answer.
Exam Tip
सही युग्म ((2,1),(3,1),(3,2),(5,1),(5,2),(5,3)) हैं। असमानता में क्रम बदलने से उत्तर बदल सकता है।
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