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On natural numbers, (aRb) is defined when (b=2a). Is this relation transitive?

Answer and explanation

Correct answer: No, because (1R2) and (2R4) hold but (1R4) does not

Step 1: (2=2\cdot 1), so (1R2). Also (4=2\cdot 2), so (2R4). Step 2: If the relation were transitive, (1R4) would hold, but (4\ne 2\cdot 1). Step 3: In multiplication-based relations, two steps may change the rule, so check the direct pair.

Related tags

Doubling RelationNon TransitiveNatural NumbersClass 12Transitive RelationRelations And FunctionsMathematicsClass 12 Mcq

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