Given set A ={1, 2, 3} and a relation R = {(1, 2), (2, 1),(2,2)}, the relation R will be

Let A and B have 3 and 6 elements respectively. The minimum number of elements in A ∪ B

Let A, B be two sets. Then, the complement of U, Universal set is

In a science talent examination, 50% of the candidates fail in Mathematics and 50% fail in Physics. If 20% fail in both these subjects, then the percentage that pass in both subjects is

A group of honest people in India is a

If X is a set and the set contains an integer which is neither positive nor negative then the set X is

How many elements in the Power set of set A= {{Φ}, {Φ, {Φ}}}

The number of binary relation on a set with n elements is

What is the possible number of reflexive relations on a set of 5 elements?