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On natural numbers, (aRb) holds when (a) and (b) have the same number of digits. What type of relation is it?

Answer and explanation

Correct answer: Equivalence relation

Step 1: Every number has the same number of digits as itself. Step 2: If two numbers have the same number of digits, the reverse statement is also true. Step 3: This equality of digit count is transitive, so the relation is an equivalence relation.

Related tags

Number Of DigitsNatural NumbersEquivalence RelationRelations And FunctionsMathematicsClass 12 Mcq

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