यदि \(A=\{1,2,3\}\) और \(B=\{2,3,4\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x+y) विषम है?
If \(A=\{1,2,3\}\) and \(B=\{2,3,4\}\), how many pairs ((x,y)) in \(A\times B\) have (x+y) odd?
Explanation opens after your attempt
Correct Answer
A. (5)
Concept
A sum is odd when one component is odd and the other is even. Here (5) such pairs are formed.
Why this answer is correct
The correct answer is A. (5). A sum is odd when one component is odd and the other is even. Here (5) such pairs are formed.
Exam Tip
योग विषम तब होता है जब एक घटक विषम और दूसरा सम हो। यहां ऐसे (5) युग्म बनते हैं।
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