Mathematics Practice Test – Set Theory (Questions with Answers and Explanations)

Hello and Welcome to Mathematics Practice Test - Set Theory

  1. You are to attempt 5 random objectives questions ONLY.
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1. 


The Universal Set U = {1, 2, 3, ……, 19, 20} and subsets A, B, C of U are given by

A = (multiples of five)
B = (multiples of four)
C = (multiples of three)

List the elements of C.

A. {2, 3, 5, 10, 15, 18}     B. {3, 6, 9, 12, 15, 18}     C. {4, 8, 12, 16, 20}     D. {5, 10, 15, 20}

2. 


The Universal Set U = {1, 2, 3, ……, 19, 20} and subsets A, B, C of U are given by

A = (multiples of five)
B = (multiples of four)
C = (multiples of three)

Find B ∪ C.

A. {15, 18, 20}     B. {3, 6, 9, 12, 15, 18}     C. {3, 4, 6, 8, 9, 12, 15, 16, 18, 20}    D. {5, 10, 15, 20}

3. 


If P = {a, b, c, d} and Q = {c, a, d, b}, then ______

A. P > Q       B. P < Q       C. P = Q      D. P  Q

4. 


The Universal Set U = {1, 2, 3, ……, 19, 20} and subsets A, B, C of U are given by

A = (multiples of five)
B = (multiples of four)
C = (multiples of three)

List the elements of A.

A. {2, 5, 10, 15, 18, 20}     B. {3, 6, 9, 12, 15, 18}     C. {4, 8, 12, 16, 20}     D. {5, 10, 15, 20}

5. 


Find the number of subsets in the set M = {1, 2, 3, 5, 7}

A. 5   B. 10   C. 32   D. 25


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