1. Instruction: Read the following questions carefully. Encircle the letter of the correct answer. 1. Which of the following does not belong to the group of numbers? a. 1 b. 2 c. 3 d. 5 2. Let A = {1,2,3,4,5). Which is not an element of A? a. 3 b.0 c. 1 d. 2 3. Let A= set of even integers from 1 to 10. How many elements does D have? a 4 h 5 C. 6 d. 7 4. Which of the following is a set of even integers? a. (2,4,6,10} b. {2,4,5,6} c. (1,3,5,7} d. {2,4,6,7} 5. Let B = {2,4,5) and C = (6,7,8). What is B UC? a. {2,4,5,6,7,8) b. {2,4,5) c. {6,7,8} 6. Which of the following is a subset of the set consisting of multiples of 4? 2. {2,4,8) b. (4,6,8} c. (4,8,12} d. {2,4,6,7,8} d. {4,14,24) 7. True or False: The set of whole numbers is a subset of the set of counting numbers. a. false b. true c. both a and b 8. Let X = {0,1,2,3,4,5) and Y = {6,7,8,9}. What is X NY? d. none of the choices a. Ø b. (2,4,6,8} c. {1,3,4,5,7} d. {0,1,3,9} 9. Let X = {4,5,6,7,8,9) and Z = {2,4,6,8]. What is X NZ? 2. 0 {2,4,6,8} c. (4,5,6,7,8,9) d. (4,6,8} 10. Let X = {0,2,4,} and Z = {0,1,3). What is X UZ? b. {0,2,4,} a. Ø c. {0,0,1,2,3,4} d. {0,1,2,3,4}
Answer (1)
1. a. 12. b. 03. a. 44. a. {2,4,6,10}5. a. {2,4,5,6,7,8}6. c. {4,8,12}7. a. false8. a. Ø9. d. {4,6,8}10. d. {0,1,2,3,4}Disclaimer: This response is not AI-generated. Source: Elementary Set Theory, standard mathematics textbooks.
