Let R be a relation defined as x R y if and only if 2 x+3 y=20, where x, y \in N. How many elements of the form (x, y) are there in R ? [NDA-I 2021]

NDA Math Sets Relations and Functions

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Let R be a relation defined as xRy if and only if 2x+3y=20, where x,y∈N. How many elements of the form (x,y) are there in R ?

[NDA-I 2021]

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