Sets in Algebra MCQs

By: Prof. Dr. Fazal Rehman | Last updated: January 31, 2025

\[ \textbf{MCQs on Sets with Answers} \] \[ \textbf{Q1: Which of the following represents the union of sets A and B?} \] \[ \text{(A) } A \cap B \quad \text{(B) } A – B \quad \text{(C) } A \cup B \quad \text{(D) } A \subseteq B \] \[ \textbf{Answer: (C) } A \cup B \] \[ \textbf{Q2: If A = \{1, 2, 3\} and B = \{3, 4, 5\}, what is A ∩ B?} \] \[ \text{(A) } \{1, 2, 3, 4, 5\} \quad \text{(B) } \{3\} \quad \text{(C) } \{1, 2\} \quad \text{(D) } \{4, 5\} \] \[ \textbf{Answer: (B) } \{3\} \] \[ \textbf{Q3: Which of the following is the complement of set A if universal set U = \{1, 2, 3, 4, 5\} and A = \{1, 2, 3\}?} \] \[ \text{(A) } \{1, 2, 3\} \quad \text{(B) } \{4, 5\} \quad \text{(C) } \{3, 4, 5\} \quad \text{(D) } \{2, 3, 4\} \] \[ \textbf{Answer: (B) } \{4, 5\} \] \[ \textbf{Q4: The power set of a set A is the set of all:} \] \[ \text{(A) } Proper subsets of A \quad \text{(B) } Subsets of A \quad \text{(C) } Elements of A \quad \text{(D) } Super sets of A \] \[ \textbf{Answer: (B) } Subsets of A \] \[ \textbf{Q5: If A = \{x | x \text{ is an even number}\} and B = \{x | x \text{ is a prime number}\}, what is A ∩ B?} \] \[ \text{(A) } \{2\} \quad \text{(B) } \{4, 6, 8\} \quad \text{(C) } \{1, 2, 3\} \quad \text{(D) } \{2, 3, 5\} \] \[ \textbf{Answer: (A) } \{2\} \] \[ \textbf{Q6: Which of the following sets is a subset of every set?} \] \[ \text{(A) } The empty set \quad \text{(B) } The universal set \quad \text{(C) } The set of all real numbers \quad \text{(D) } The set of all integers \] \[ \textbf{Answer: (A) } The empty set \] \[ \textbf{Q7: If A = \{1, 2, 3\} and B = \{3, 4, 5\}, what is A – B?} \] \[ \text{(A) } \{1, 2\} \quad \text{(B) } \{3\} \quad \text{(C) } \{4, 5\} \quad \text{(D) } \{1, 2, 3, 4, 5\} \] \[ \textbf{Answer: (A) } \{1, 2\} \] \[ \textbf{Q8: The Cartesian product of sets A = \{1, 2\} and B = \{x, y\} is:} \] \[ \text{(A) } \{(1, x), (1, y), (2, x), (2, y)\} \quad \text{(B) } \{(x, 1), (y, 2)\} \quad \text{(C) } \{1, 2, x, y\} \quad \text{(D) } \{(1, y), (2, x)\} \] \[ \textbf{Answer: (A) } \{(1, x), (1, y), (2, x), (2, y)\} \] \[ \textbf{Q9: If A = \{a, b, c\} and B = \{a, c, d\}, what is A ∪ B?} \] \[ \text{(A) } \{a, b, c\} \quad \text{(B) } \{a, b, c, d\} \quad \text{(C) } \{a, b, c, d, e\} \quad \text{(D) } \{b, c, d\} \] \[ \textbf{Answer: (B) } \{a, b, c, d\} \] \[ \textbf{Q10: Which of the following operations can be performed on two sets?} \] \[ \text{(A) } Intersection \quad \text{(B) } Union \quad \text{(C) } Difference \quad \text{(D) } All of the above \] \[ \textbf{Answer: (D) } All of the above \]

More MCQs on Algebra (Collected from Past Papers)

  1. Elementary Algebra – MCQs
  2. Algebraic Expressions – MCQs
  3. Algebraic Identities – MCQs
  4. Commutative Algebra – MCQs
  5. Linear Equations – MCQs
  6. Graphing Linear Equations – MCQs
  7. Inequalities in Algebra – MCQs
  8. Absolute Value Inequalities – MCQs
  9. Exponent – MCQs
  10. Exponential Functions – MCQs
  11. Logarithms – MCQs
  12. Polynomials – MCQs
  13. Factoring Methods – MCQs
  14. Polynomial Arithmetic – MCQs
  15. Quadratic Equation – MCQs
  16. Linear Algebra – MCQs
  17. Matrices in Algebra – MCQs
  18. Functions in Algebra – MCQs
  19. Sequences in Algebra – MCQs
  20. Arithmetic in Algebra – MCQs
  21. Combining Like Terms in Algebra – MCQs
  22. Abstract Algebra – MCQs
  23. Sets in Algebra – MCQs
  24. Algebra Calculator – MCQs

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