State, which of the following pairs of sets are disjoint :
A={natural numbers less than 10} and B={ x:x is a multiple of 5}
Given:
A = {natural numbers less than 10}
= {1, 2, 3, 4, 5, 6, 7, 8, 9}
And B = {x : x is a multiple of 5}
= {5, 10, 15, 20, ........}