Question

Form the union for the following sets.

R = {10, 15, 20}
S = {20, 25}
R ∪ S =

{ }
{20}
{10, 15, 25}
{10, 15, 20, 25}

Answer 1

Find the intersection of the two sets.
A= {1,2,3,4} and B = {3,4,5,6}

Answer 2

RUS = { 10, 15, 20} U { 20, 25} = { 10, 15, 20, 25}

So, last one is the correct answer.