Let A be the set of all students in a school. A relation R is defined on A as follows: "aRb iff a and b have the same class teacher". Then R is

JEE Main Mathematics question

Let be the set of all students in a school. A relation is defined on as follows: " iff and have the same class teacher". Then is

Answer: (D)

Each student has exactly one class teacher, so is reflexive, symmetric and transitive: an equivalence relation.

Question ID VK-003201