Directions: Read the questions carefully. Choose/click the letter of the correct answer. 1.If set A = {planets} and set B = {Earth, Venus, Mars, Neptune}, what is A – B? * A. A – B = { } B. A – B = {Venus, Earth, Jupiter} C. A – B = {Mercury, Jupiter, Saturn, Uranus} D. A – B = {Venus, Earth, Jupiter, Uranus} 2.If the universal set U = {letters in the word GRADES} and set A = {s, a, d}, what is the complement of A (A’)? * A. A’ = {g, r, e} B. A’ = {g, a, d} C. A’ = {g, a, s} D. A’ = {r, a, d} 3.Which of the following sets is equal to Set S = {a, b, c, …, z}? * A. E = {a, e, i, o, u } B. E = {letters in the alphabet} C. E = {m, a, t, h, e, m, a, t, i, c, s} D. E = {consonant} 4.Let A= {apple, banana, orange} and B= {grapes, santol}. What is the cardinality of A U B? * A. n(AUB) = 2 B. n(AUB) = 5 C. n(AUB) = 3 D. n(AUB) = 6 5.Which of the following is an infinite set? A. C = {counting numbers} B. C = {vowels} C. C = {presidents of the Philippines} D. C = {months of the year} 6.Which of the following is an infinite set? A. C = {counting numbers} B. C = {vowels} C. C = {presidents of the Philippines} D. C = {months of the year} 7.Let A= {counting numbers up to 10} and B= {even numbers less than 10}. What is the cardinality of A ∩ B? * A. n(A ∩ B) = 4 B. n(A ∩ B) = 6 C. n(A ∩ B) = 5 D. n(A ∩ B) = 7 8.Given U = {1, 2, 3, 4, 5, 6,7,8, 9,10}, A = {2, 4, 6, 8, 10} and B = {1, 2, 3, 8, 10}. What is A ∩ B? * A. A ∩ B = {3} B. A ∩ B = {2, 8, 10} C. A ∩ B = {6} D. A ∩ B = {1, 5, 7, 9} 9.What is the equivalent of set C = {c, o, v, i, d} to the following sets below? * A. Y = {v, i, r, u, s, e, s} B. Y = {l, a, m, b, d, a} C. Y = {d, e, l, t, a} D. Y = {d, e, a, d, l, y} 10.Which of the following is true about set D? D = {2, 3, 5, 7, …} * A. -1 ∈ D B. 4 ∈ D C. Set D is a set of whole numbers D. Set D is infinite 11.If A = {red, yellow, blue} and B = {green, orange, violet, indigo}, then which of the following is the universal set? * A. U = {set of colors of the rainbow} B. U = {set of colors} C. U = {set of primary colors} D. U = {set of secondary colors} 12.Which of the following is not a subset of C? C = {d, e, l, t, a} * A. G = {l, a, t, e, d} B. G = {b, e, l, t, a} C. G = {d, e, a, l} D. G = {l, a, t, e} 13.Which of the following sets is an example of roster notation? * A. A = {a, e, i, o, u} B. A = {set of fruits} C. A = {set of gadgets} D. A = {x/x is an even number} 14.What is the cardinality of Set H = {set of months of the year}? * A. n(H) = 5 B. n(H) = 9 C. n(H) = 7 D. n(H) = 12 15.Which of the following is a finite set? * A. D = {minutes in an hour} B. D = {prime numbers} C. D = {stars in the sky} D. D = {even numbers} 16.Given U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {2, 4, 6, 8} and B = {1, 3, 5, 7, 9}. What is A U B? * A. A U B = U B. A U B = { } C. A U B = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} D. A U B = {1, 2, 3, 4, 5, 6, 7, 8, 9}

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