यदि \(A=\{0,1,2,3\}\) और \(B=\{1,2,3,4\}\) हैं, तो \(A\times B\) में कितने युग्म ((a,b)) ऐसे हैं जिनमें (a<b) है?
If \(A=\{0,1,2,3\}\) and \(B=\{1,2,3,4\}\), how many pairs ((a,b)) in \(A\times B\) satisfy (a<b)?
Explanation opens after your attempt
C. (10)
Concept
For (a=0,1,2,3), the counts of (b) are (4,3,2,1), totaling (10). Count row-wise in inequality questions.
Why this answer is correct
The correct answer is C. (10). For (a=0,1,2,3), the counts of (b) are (4,3,2,1), totaling (10). Count row-wise in inequality questions.
Exam Tip
(a=0,1,2,3) के लिए (b) के क्रमशः (4,3,2,1) मान मिलते हैं, कुल (10)। असमानता में पंक्ति के अनुसार गिनती करें।
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