NDA Math Sets Relations and Functions

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Question : 67 of 90

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Let S be the set of all persons living in Delhi. We say that x, y in S are related if they were born in Delhi on the same day. Which one of the following is correct?

[NDA I 2017]

The relation is an equivalent relation.
The relation is not reflexive but it is symmetric and transitive.
The relation is not symmetric but is reflexive and transitive.
The relation is not transitive but it is reflexive and symmetric.

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