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MathsJEE Main 24 Jan 2026, Shift 1·Q12·MCQ·Easy–moderate

Sets, Relations & Functions · Number of elements in relation

Let RR be a relation defined on the set {1,2,3,4}×{1,2,3,4}\{1, 2, 3, 4\} \times \{1, 2, 3, 4\} by R={((a,b),(c,d)):2a+3b=3c+4d}.R = \{((a, b), (c, d)) : 2a + 3b = 3c + 4d\}. Then the number of elements in RR is
  1. (1)6
  2. (2)18
  3. (3)12
  4. (4)15

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