Let A = { 1,2,3,4} and R be a relation on the set A X A defined by R = {((a,b),(c,d)):2a + 3b = 4c + 5d}. Then the number of elements in R is: Relation (Mathematics) Question | DivineJEE

Let A = { 1,2,3,4} and R be a relation on the set A X A defined by R = {((a,b),(c,d)):2a + 3b = 4c + 5d}. Then the number of elements in R is: Relation (Mathematics) Question | DivineJEE | divineJEE