Question

Which of the following shows the intersection of the sets? {1, 5, 10, 15} {1, 3, 5, 7}

Answer 1

{1,5}

Explanation:

The intersection of the sets are all of the numbers that appear in both sets. In this case, the only numbers that appear in both are 1 and 5.

Answer 2

{ 1,5}

Explanation:

The intersection is what the two sets have in common

{1, 5, 10, 15}∩ {1, 3, 5, 7}

= { 1,5}