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Solution


Q.

Let R be a relation defined on the set {1,2,3,4}×{1,2,3,4} by R={((a,b),(c,d)):2a+3b=3c+4d}.

Then the number of elements in R  is                       [2026]
1 15  
2 6  
3 18  
4 12  

Ans.

(4)