Discrete Structure (DS) MCQs | Page - 1

Dear candidates you will find MCQ questions of Discrete Structure (DS) here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 100.69K Points
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Q. Let A={2,{4,5},4} Which statement is correct?

  • (A) 5 is an element of A.
  • (B) {5} is an element of A.
  • (C) {4, 5} is an element of A.
  • (D) {5} is a subset of A.
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Mr. Dubey • 100.69K Points
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Q. Which of these sets is finite?

  • (A) {x | x is even}
  • (B) ) {1, 2, 3,...}
  • (C) {1, 2, 3,...,999,1000}
  • (D) none
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Mr. Dubey • 100.69K Points
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Q. Which of these sets is not a null set?

  • (A) A = {x | 6x = 24 and 3x = 1}
  • (B) B = {x | x + 10 = 10}
  • (C) C = {x | x is a man older than 200 years}
  • (D) D = {x | x < x}
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Mr. Dubey • 100.69K Points
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Q. . Which set S does the power set 2S = {Ф,{1}, {2}, {3}, {1, 2}, {1, 3}, {2, 3}, {1, 2, 3}} come from?

  • (A) {{1},{2},{3}}
  • (B) {1, 2, 3}
  • (C) {{1, 2}, {2, 3}, {1, 3}}
  • (D) {{1, 2, 3}}
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Mr. Dubey • 100.69K Points
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Q. Let A = {x, y, z}, B = {v, w, x}. Which of the following statements is correct?

  • (A) A U B ={v, w, x, y, z}
  • (B) A U B = {v, w, y, z}
  • (C) A U B = {v, w, x, y}
  • (D) A U B ={x, w, x, y, z}
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Mr. Dubey • 100.69K Points
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Q. which sets are equal ? 1.{r,s,t} 2.{s,s,t,r} 3.{t,r,t,s}

  • (A) 1 and 2
  • (B) 2 and 3
  • (C) 1 and 3
  • (D) all are equal
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Mr. Dubey • 100.69K Points
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Q. A U A=A according to …….law

  • (A) Associative law
  • (B) commutative law
  • (C) Indempotent law
  • (D) distributive law
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Mr. Dubey • 100.69K Points
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Q. In any application of the theory of sets, the members of all the sets belongs to …… set

  • (A) union
  • (B) intersection
  • (C) universal
  • (D) cardinal
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