Solved problems on intersection of sets are given below to get a fair idea how to find the intersection of two or more sets.

We know, the intersection of two or more sets is a set which contains all the elements that are common in those sets.

**Click Here** to know more about the operations on intersection of sets.

Solved problems on intersection of sets:

**1.** Let A = {x : x is a natural number and a factor of 18}

B = {x : x is a natural number and less than 6}

Find A ∪ B and A ∩ B. **Solution: **

A = {1, 2, 3, 6, 9, 18}

B = {1, 2, 3, 4, 5}

Therefore, A ∩ B = {1, 2, 3}

**2.** If P = {multiples of 3 between
1 and 20} and Q = {even natural numbers upto 15}. Find the intersection of the
two given set P and set Q.

**Solution:**

P = {multiples of 3 between 1 and 20}

So, P = {3, 6, 9, 12, 15, 18}

Q = {even natural numbers upto 15}

So, Q = {2, 4, 6, 8, 10, 12, 14}

Therefore, intersection of P and Q is the largest set containing only those elements which are common to both the given sets P and Q

Hence, P ∩ Q = {6, 12}.

More worked-out problems on union of sets to **find the intersection of
three sets**.

**3**. Let A = {0, 1, 2, 3, 4, 5}, B = {2,
4, 6, 8} and C = {1, 3, 5, 7}

Verify (A ∩ B) ∩ C = A ∩ (B ∩ C)

**Solution: **

(A ∩ B) ∩ C = A ∩ (B ∩ C)

L.H.S. = (A ∩ B) ∩ C

A ∩ B = {2, 4}

(A ∩ B) ∩ C = {∅} ……………….. (1)

R.H.S. = A ∩ (B ∩ C)

B ∩ C = {∅}

A ∩ {B ∩ C} = {∅} ……………….. (2)

Therefore, from (1) and (2), we conclude that;

(A ∩ B) ∩ C = A ∩ (B ∩ C) [*verified*]

● **Set Theory**

**● ****Finite Sets and Infinite Sets**

**● ****Problems on Intersection of Sets**

**● ****Problems on Complement of a Set**

**● ****Problems on Operation on Sets**

**● ****Venn Diagrams in Different
Situations**

**● ****Relationship in Sets using Venn
Diagram**

**● ****Union of Sets using Venn Diagram**

**● ****Intersection of Sets using Venn
Diagram**

**● ****Disjoint of Sets using Venn
Diagram**

**● ****Difference of Sets using Venn
Diagram**

**8th Grade Math Practice**

**From Problems on Intersection of Sets to HOME PAGE**

**Didn't find what you were looking for? Or want to know more information
about Math Only Math.
Use this Google Search to find what you need.**

## New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.