State, which of the following pairs of sets are disjoint :
v:- {people living in Calcutta} and
{people living in west Bengal}
Step : Check whether the pair of sets are disjoint
Given:
{people living in Calcutta} &
{people living in west Bengal}
People of Calcutta are the people of west Bengal as Calcutta is a city of west Bengal.
And we know that Sets having no element in common are called disjoint sets.
Hence, the given pair of sets are not disjoint sets.