Question

In the Venn diagram given below, what is the cardinality of the set $A\cap B$?

• A. 3
• B. 2
• C. 0.0
• D. 4

Answer 1

The correct option is C 0.0


From the above Venn diagram,
set $A$ = {1, 2, 5, 6}
set $B$ = {3, 9}
$A\cap B$ = { }
i.e., null set.
The cardinality of a null set is zero.
$\therefore$ Cardinality of set $A\cap B$ is 0.