यदि \(A=\{1,2,5\}\) और \(B=\{2,4,6\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x+y>7)?
If \(A=\{1,2,5\}\) and \(B=\{2,4,6\}\), how many pairs ((x,y)) in \(A\times B\) satisfy (x+y>7)?
Explanation opens after your attempt
B. (3)
Concept
The valid pairs are ((2,6),(5,4),(5,6)). Pairs with (x+y=7) are not included.
Why this answer is correct
The correct answer is B. (3). The valid pairs are ((2,6),(5,4),(5,6)). Pairs with (x+y=7) are not included.
Exam Tip
सही युग्म ((2,6),(5,4),(5,6)) हैं। (x+y=7) वाले युग्म शामिल नहीं होंगे।
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