यदि \(A=\{1,2,3,4,5\}\) और \(R={(a,b):a\) is one less than (b}) है, तो कौन-सा pair सही है?
If \(A=\{1,2,3,4,5\}\) and \(R={(a,b):a\) is one less than (b}), which pair is correct?
Explanation opens after your attempt
B. ( (3,4) )
Concept
The number (3) is one less than (4), so ( (3,4) ) is correct. Convert word conditions into equations.
Why this answer is correct
The correct answer is B. ( (3,4) ). The number (3) is one less than (4), so ( (3,4) ) is correct. Convert word conditions into equations.
Exam Tip
(3) संख्या (4) से एक कम है, इसलिए ( (3,4) ) सही है। शब्दों वाली condition को equation में बदलें।
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