Union & Intersect

Practice Questions

GRE Subject Test: Math › Union & Intersect

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What is the union of the following sets:

Set A={}
Set B={}

$A=\left { 3, 4, 7, 9 \right }$

$B=\left { 1, 3, 5, 8, 9, 11 \right }$

$C=\left { 2, 3, 5, 6, 9, 12 \right }$

What is $B \cup C$ ?

$U=\left { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12\right }$

$A=\left { 3, 4, 6, 7, 8, 9\right }$

$B=\left { 1, 3, 4, 5\right }$

$C=\left { 2, 7, 8, 9, 11, 12\right }$

$D=\left { 4, 9, 11, 12\right }$

Evaluate $B \cap D$

What is the intersection of :

Set A={}
Set B={}

Let be the universal set of all people. Let be the set of all people who like Band A. Let be the set of all people who like Band B. Let be the set of all people who like Band C. Let stand for Julianna.

Let $j \in A \cap (B' \cup C)$ . Which of the following could be true?

$A=\left { 3, 4, 7, 9 \right }$

$B=\left { 1, 3, 5, 8, 9, 11 \right }$

$C=\left { 2, 3, 5, 6, 9, 12 \right }$

What is $B \cup C$ ?

$U=\left { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12\right }$

$A=\left { 3, 4, 6, 7, 8, 9\right }$

$B=\left { 1, 3, 4, 5\right }$

$C=\left { 2, 7, 8, 9, 11, 12\right }$

$D=\left { 4, 9, 11, 12\right }$

Evaluate $(C \cup B) \cap D$

Let universal set be the set of all people. Let represent Brittany.

Let be the set of people who like James Blunt, , the set of people who like John Legend, and , the set of people who like Pharrell Williams.

True or false: Brittany likes James Blunt, John Legend, and Pharrell Williams.

Statement 1: $b \in A \cap B \cap C$

Statement 2: $b \in A \cup B \cup C$

Let be the universal set of all people. Let be the set of all people who are dancers and be the set of all people that are singers.

Let represent Jeremy. Which of these statements states the opposite of "Jeremy is not a dancer, but he is a singer" in set notation?

$A=\left { 3, 4, 7, 9 \right }$

$B=\left { 1, 3, 5, 8, 9, 11 \right }$

$C=\left { 2, 3, 5, 6, 9, 12 \right }$

What is $A \cap C$ ?

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