Question

Which is the intersection of the sets {2,3,5,7} and {2,5,11,13}?

Answer 1

ANSWER

The set of the intersection  of {$2,3,5,7$} and {$2,5,11,13$} is

{$2,5$}

EXPLANATION

Let $A=${$2,3,5,7$}

and

$B=${$2,5,11,13$}.

The intersection of the two sets are the elements that are in both set A and set B.

The elements that are common to both sets are 2 and 5. So, we write;

$A \cap B=${$2,5$}

Therefore the correct answer is C