Practice Test on Operations on Sets

In practice test on operations on sets we will solve 8 different types of questions on more about sets. The questions will be mainly related to union of sets, intersection of sets and difference of sets.

Practice Test on Operations on Sets

1. If A = {2, 3, 4, 5}     B = {4, 5, 6, 7}     C = {6, 7, 8, 9}     D = {8, 9, 10, 11}, find

(a) A βˆͺ B

(b) A βˆͺ C

(c) B βˆͺ C

(d) B βˆͺ D

(e) (A βˆͺ B) βˆͺ C

(f) A βˆͺ (B βˆͺ C)

(g) B βˆͺ (C βˆͺ D)


2. If A = {4, 6, 8, 10, 12} B = {8, 10, 12, 14} C = {12, 14, 16} D = {16, 18}, find

(a) A ∩ B

(b) B ∩ C

(c) A ∩ (C ∩ D)

(d) A ∩ C

(e) B ∩ D

(f)(A ∩ B) βˆͺ C

(g) A ∩ (B βˆͺ D)

(h) (A ∩ B) βˆͺ (B ∩ C)

(i) (A βˆͺ D) ∩ (B βˆͺ C)


3. If A = {4, 7, 10, 13, 16, 19, 22}   B = {5, 9, 13, 17, 20}
C = {3, 5, 7, 9, 11, 13, 15, 17}   D = {6, 11, 16, 21} then find


(a) A - C

(b) D - A

(c) D - B

(d) A - D

(e) B - C

(f) C - D

(g) B - A

(h) B - D

(i) D - C

(j) A - B

(k) C - B

(l) C - A

More Practice Test on Operations on Sets
4. If A and B are two sets such that A βŠ‚ B, then what is AβˆͺB?

5. Find the union, intersection and the difference (A - B) of the following pairs of sets.

(a) A = The set of all letters of the word FEAST

     B = The set of all letters of the word TASTE

(b) A = {x : x ∈ W, 0 < x ≀ 7}

     B = {x : x ∈ W, 4 < x < 9}

(c) A = {x | x ∈ N, x is a factor of 12}

     B = {x | x ∈ N, x is a multiple of 2, x < 12}

(d) A = The set of all even numbers less than 12

     B = The set of all odd numbers less than 11

(e) A = {x : x ∈ I, -2 < x < 2}

     B = {x : x ∈ I, -1 < x < 4}

(f) A = {a, l, m, n, p}

    B = {q, r, l, a, s, n}


6. Let X = {2, 4, 5, 6}   Y = {3, 4, 7, 8}   Z = {5, 6, 7, 8}, find

(a) (X - Y) βˆͺ (Y - X)

(b) (X - Y) ∩ (Y - X)

(c) (Y - Z) βˆͺ (Z - Y)

(d) (Y - Z) ∩ (Z - Y)

Practice Test on Operations on Sets

7. Let ΞΎ = {1, 2, 3, 4, 5, 6, 7} and A = {1, 2, 3, 4, 5} B = {2, 5, 7} show that

(a) (A βˆͺ B)' = A' ∩ B'

(b) (A ∩ B)' = A' βˆͺ B'

(c) (A ∩ B) = B ∩ A

(d) (A βˆͺ B) = B βˆͺ A


8. Let P = {a, b, c, d}   Q = {b, d, f}   R = {a, c, e} verify that

(a) (P βˆͺ Q) βˆͺ R = P βˆͺ (Q βˆͺ R)

(b) (P ∩ Q) ∩ R = P ∩ (Q ∩ R)


Answers for practice test on operations on sets are given below to check the correct answers.


Answers:

1. (a) {2, 3, 4, 5, 6, 7}
(b) {2, 3, 4, 5, 6, 7, 8, 9}
(c) {4, 5, 6, 7, 8, 9}
(d) {4, 5, 6, 7, 8, 9, 10, 11}
(e) {2, 3, 4, 5, 6, 7, 8, 9}
(f) {2, 3, 4, 5, 6, 7, 8, 9}
(g) {4, 5, 6, 7, 8, 9, 10, 11}


2. (a) {8, 10, 12}
(b) {12, 14}
(c) βˆ…
(d) {12}
(e) d
(f) {8, 10, 12, 14, 16}
(g) {8}
(h) {8, 10, 12, 14}
(i) {8, 10, 12, 16}


3. (a) {4, 10, 16, 19, 22}
(b) {6, 11, 21}
(c) {6, 11, 16, 21}
(d) {4, 7, 10, 13, 19, 22}
(e) {20}
(f) {3, 5, 7, 9, 13, 15, 17}
(g) {5, 19, 17, 20}
(h) {5, 9, 13, 17, 20}
(i) {6, 16, 21}
(j) {4, 7, 10, 16, 19, 22}
(k) {3, 7, 11, 15}
(l) {3, 5, 9 11, 15, 17}


4. B

5. (a) {F, E, A, S, T}, {E, A, S, T}, {F}
(b) {1, 2, 3, 4, 5, 6, 7, 8}, {5, 6, 7}, {1, 2, 3, 4}
(c) {1, 2, 3, 4, 6, 8, 10, 12}, {2, 4, 6}, {1, 3, 12}
(d) {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, d, {2, 4, 6, 8, 10}
(e) {-1, 0, 1, 2, 3}, {0, 1}, {-1}
(f) {a, 1, m, n, p, q, r, s}, {a, l, n}, {m, p}


6. (a) {2, 3, 5, 6, 7, 8}
(b) d
(c) d {3, 4, 5, 6}
(d) d


7. (a) L.H.S. = R. H. S = {6}
(b) L.H.S. = R. H. S = {1, 3, 4, 6, 7}
(c) {2, 5}
(d) {1, 2, 3, 4, 5, 7}


8. (a) {a, b, c, d, e, f}
(b) d

● Set Theory

● Sets

● Representation of a Set

● Types of Sets

● Pairs of Sets

● Subset

● Practice Test on Sets and Subsets

● Complement of a Set

● Problems on Operation on Sets

● Operations on Sets

● Practice Test on Operations on Sets

● Word Problems on Sets

● Venn Diagrams

● Venn Diagrams in Different Situations

● Relationship in Sets using Venn Diagram

● Examples on Venn Diagram

● Practice Test on Venn Diagrams

● Cardinal Properties of Sets



7th Grade Math Problems

8th Grade Math Practice

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