यदि \(A=\{2,4,6\}\) और \(B=\{1,2,3\}\), तो \(A\times B\) में कितने युग्म ((a,b)) ऐसे हैं जिनमें \(\frac{a}{b}=2\) है?
If \(A=\{2,4,6\}\) and \(B=\{1,2,3\}\), how many pairs ((a,b)) in \(A\times B\) satisfy \(\frac{a}{b}=2\)?
Explanation opens after your attempt
Correct Answer
C. (3)
Concept
The condition gives (a=2b), so the pairs are ((2,1),(4,2),(6,3)). Convert a fraction condition into a simple linear relation.
Why this answer is correct
The correct answer is C. (3). The condition gives (a=2b), so the pairs are ((2,1),(4,2),(6,3)). Convert a fraction condition into a simple linear relation.
Exam Tip
शर्त (a=2b) देती है, इसलिए ((2,1),(4,2),(6,3)) मिलते हैं। भिन्न को सरल रैखिक संबंध में बदलें।
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