Given the relation `R={(1,2),(2,3)}` on the set `A={1,2,3}` the minimum number of ordered pairs which when added to `R` make it an equivalence relation is

Given the relation R= {(1,2),(2,3)} is the set A= {1,2,3}. Then the minimum number of ordered pairs which when added to R make it an equivalence relation is :

Given a relation R ={ 7,8),(8,3) on the set A= {3,7,8} the least number of ordered pairs which when added to R make it an equivalence relations is

Let set A={1,2,3} . Then find number of ordered pairs which when added to R make it reflexive but not symmetric

Let A={1, 2, 3} and let the relation R={(1, 2), (2, 3)} what is the minimum number of order pairs introduced to R ot make it an equivalence relation.