यदि \(A=\{1,2,3,4\}\) और \(B=\{2,4\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (y) संख्या (x) को विभाजित करती है?
If \(A=\{1,2,3,4\}\) and \(B=\{2,4\}\), how many pairs ((x,y)) in \(A\times B\) satisfy that (y) divides (x)?
Explanation opens after your attempt
Correct Answer
A. (3)
Concept
The correct pairs are ((2,2),(4,2),(4,4)). In divisibility, changing positions changes the meaning.
Why this answer is correct
The correct answer is A. (3). The correct pairs are ((2,2),(4,2),(4,4)). In divisibility, changing positions changes the meaning.
Exam Tip
सही युग्म ((2,2),(4,2),(4,4)) हैं। विभाज्यता में स्थान बदलने से अर्थ बदल जाता है।
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