Q. Let A={a, b, {c, d}, e}. How many elements does A contain?
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Correct Answer: (D)
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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.
Q. Let A={2,{4,5},4} Which statement is correct?
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Correct Answer: (C)
{4, 5} is an element of A.
Q. Which of these sets is finite?
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Correct Answer: (C)
{1, 2, 3,...,999,1000}
Q. Which of these sets is not a null set?
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Correct Answer: (B)
B = {x | x + 10 = 10}
Q. . Let S={1, 2, 3}. How many subsets does S contain?
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Correct Answer: (C)
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Q. . Which set S does the power set 2S = {Π€,{1}, {2}, {3}, {1, 2}, {1, 3}, {2, 3}, {1, 2, 3}} come from?
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Correct Answer: (B)
{1, 2, 3}
Q. Let A = {x, y, z}, B = {v, w, x}. Which of the following statements is correct?
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Correct Answer: (A)
A U B ={v, w, x, y, z}
Q. which sets are equal ? 1.{r,s,t} 2.{s,s,t,r} 3.{t,r,t,s}
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Correct Answer: (D)
all are equal
Q. A U A=A according to …….law
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Correct Answer: (C)
Indempotent law
Q. In any application of the theory of sets, the members of all the sets belongs to …… set
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Correct Answer: (C)
universal
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