InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
The relation between sets A, B, C as shown by venn diagram is __________(a) A is subset of B and B is subset of C(b) C is nota subset of A and A is subset of B(c) C is subset of B and B is subset of A(d) None of the mentionedI had been asked this question in quiz.My question is taken from Sets in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» RIGHT choice is (c) C is subset of B and B is subset of A The BEST explanation: As SET C is totally INSIDE set B, set B is totally inside set A. |
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| 202. |
If n(A)=10, n(B)=30,n(C)=50 and if set A, B, C are pairwise disjoint then which of the following is correct?(a) n(A U B)=0(b) n(B U C)=0(c) n(A U B U C)=90(d) All of the mentionedThis question was addressed to me during an interview.Query is from Sets topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct OPTION is (d) All of the mentioned |
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| 203. |
The shaded area of figure is best described by?(a) A‘ (Complement of A)(b) B – (A ∩ B) – (C ∩ B)(c) A ∩ C ∩ B(d) B’ (Complement of B)I got this question in a national level competition.The origin of the question is Sets in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» CORRECT CHOICE is (b) B – (A ∩ B) – (C ∩ B) Easy EXPLANATION: The region is DIFFERENCE B with A and C. |
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| 204. |
If n(A)=20 and n(B)=30 and n(A U B) = 40 then n(A ∩ B) is?(a) 20(b) 30(c) 40(d) 10I got this question in a national level competition.My question is taken from Sets topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct CHOICE is (d) 10 |
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| 205. |
The shaded area of figure is best described by?(a) A ∩ B(b) A U B(c) A(d) BThe question was asked by my college professor while I was bunking the class.My question is from Sets in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» CORRECT choice is (a) A ∩ B The EXPLANATION: The REGION is A intersection B. |
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| 206. |
The shaded area of figure is best described by?(a) A‘ (Complement of A)(b) A U B -B(c) A ∩ B(d) BThis question was posed to me by my school principal while I was bunking the class.This is a very interesting question from Sets in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct CHOICE is (B) A U B -B |
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| 207. |
Which sets are not empty?(a) {x: x is a even prime greater than 3}(b) {x : x is a multiple of 2 and is odd}(c) {x: x is an even number and x+3 is even}(d) { x: x is a prime number less than 5 and is odd}This question was addressed to me in my homework.Origin of the question is Set Operations topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» CORRECT ANSWER is (d) { x: x is a prime number less than 5 and is odd} The best explanation: Because the SET is {3}. |
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| 208. |
Let A be {1, 2, 3, 4}, U be set of all natural numbers, then U-A’(complement of A) is given by set.(a) {1, 2, 3, 4, 5, 6, ….}(b) {5, 6, 7, 8, 9, ……}(c) {1, 2, 3, 4}(d) All of the mentionedThis question was posed to me by my college professor while I was bunking the class.This interesting question is from Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct OPTION is (c) {1, 2, 3, 4} |
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| 209. |
Two sets A and B contains a and b elements respectively. If power set of A contains 16 more elements than that ofB, value of ‘b’ and ‘a’ are _______(a) 4, 5(b) 6, 7(c) 2, 3(d) None of the mentionedI have been asked this question in homework.Origin of the question is Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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| 210. |
If A is {{Φ}, {Φ, {Φ}}}, then the power set of A has how many element?(a) 2(b) 4(c) 6(d) 8This question was posed to me in an interview for internship.This intriguing question comes from Set Operations topic in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Right OPTION is (b) 4 |
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| 211. |
If A has 4 elements B has 8 elements then the minimum and maximum number of elements in A U B are ____________(a) 4, 8(b) 8, 12(c) 4, 12(d) None of the mentionedThe question was posed to me in an online interview.This key question is from Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» RIGHT answer is (b) 8, 12 The best I can explain: MINIMUM would be when 4 elements are same as in 8, maximum would be when all are DISTINCT. |
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| 212. |
Let A be set of all prime numbers, B be the set of all even prime numbers, C be the set of all odd prime numbers, then which of the following is true?(a) A ≡ B U C(b) B is a singleton set.(c) A ≡ C U {2}(d) All of the mentionedI have been asked this question in quiz.My question is taken from Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct ANSWER is (d) All of the mentioned |
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| 213. |
Let the set A is {1, 2, 3}and B is {2, 3, 4}. Then the setA – B is?(a) {1, -4}(b) {1, 2, 3}(c) {1}(d) {2, 3}The question was posed to me during an internship interview.The origin of the question is Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The CORRECT CHOICE is (c) {1} |
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| 214. |
In which of the following sets A – B is equal to B – A?(a) A = {1, 2, 3}, B = {2, 3, 4}(b) A = {1, 2, 3}, B = {1, 2, 3, 4}(c) A = {1, 2, 3}, B = {2, 3, 1}(d) A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}I have been asked this question in class test.My question is taken from Set Operations in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The CORRECT option is (C) A = {1, 2, 3}, B = {2, 3, 1} |
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| 215. |
Let the set A is {1, 2, 3}and B is { 2, 3, 4}. Then number of elements in A ∩ B is?(a) 1(b) 2(c) 3(d) 4This question was addressed to me in semester exam.The above asked question is from Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» RIGHT CHOICE is (B) 2 The best explanation: A ∩ B is {2, 3}. |
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| 216. |
Let the set A is {1, 2, 3}and B is {2, 3, 4}. Then the number of elements in A U B is?(a) 4(b) 5(c) 6(d) 7The question was posed to me in semester exam.I need to ask this question from Set Operations topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct OPTION is (a) 4 |
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| 217. |
The set difference of the set A with null set is __________(a) A(b) null(c) U(d) BI got this question in an international level competition.I need to ask this question from Set Operations topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Right ANSWER is (a) A |
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| 218. |
The bit strings for the sets are 1111100000 and 1010101010. The union of these sets is ___________(a) 1010100000(b) 1010101101(c) 1111111100(d) 1111101010I have been asked this question at a job interview.The doubt is from Set Operations topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Right answer is (d) 1111101010 |
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| 219. |
Let Ai = {i, i+1, i+2, …..}. Then set {n, n+1, n+2, n+3, …..} is the _________ of the set Ai.(a) Union(b) Intersection(c) Set Difference(d) DisjointI had been asked this question in an interview.Question is taken from Set Operations topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The CORRECT answer is (b) Intersection |
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| 220. |
The bit string for the set {2, 4, 6, 8, 10} (with universal set of natural numbers less than or equal to 10) is ____________________(a) 0101010101(b) 1010101010(c) 1010010101(d) 0010010101The question was asked during an interview.The origin of the question is Set Operations topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct choice is (a) 0101010101 |
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| 221. |
The complement of the set A is _____________(a) A – B(b) U – A(c) A – U(d) B – AI got this question in an international level competition.I'm obligated to ask this question of Set Operations topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct choice is (B) U – A |
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| 222. |
The difference of {1, 2, 3} and {1, 2, 5} is the set ____________(a) {1}(b) {5}(c) {3}(d) {2}This question was posed to me during an interview.I'd like to ask this question from Set Operations in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct choice is (c) {3} |
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| 223. |
Two sets are called disjoint if there _____________ is the empty set.(a) Union(b) Difference(c) Intersection(d) ComplementI got this question in homework.This key question is from Set Operations in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Right OPTION is (C) Intersection |
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| 224. |
The intersection of the sets {1, 2, 5} and {1, 2, 6} is the set _____________(a) {1, 2}(b) {5, 6}(c) {2, 5}(d) {1, 6}I got this question at a job interview.Query is from Set Operations in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct answer is (a) {1, 2} |
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| 225. |
Which of the following two sets are disjoint?(a) {1, 3, 5} and {1, 3, 6}(b) {1, 2, 3} and {1, 2, 3}(c) {1, 3, 5} and {2, 3, 4}(d) {1, 3, 5} and {2, 4, 6}The question was posed to me in an interview for internship.This intriguing question comes from Set Operations in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» CORRECT answer is (d) {1, 3, 5} and {2, 4, 6} To elaborate: TWO sets are disjoint if the intersection of two sets is the empty set. |
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| 226. |
The members of the set S = {x | x is the square of an integer and x < 100} is ________________(a) {0, 2, 4, 5, 9, 58, 49, 56, 99, 12}(b) {0, 1, 4, 9, 16, 25, 36, 49, 64, 81}(c) {1, 4, 9, 16, 25, 36, 64, 81, 85, 99}(d) {0, 1, 4, 9, 16, 25, 36, 49, 64, 121}I had been asked this question in a national level competition.This interesting question is from Sets in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Right answer is (b) {0, 1, 4, 9, 16, 25, 36, 49, 64, 81} |
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| 227. |
The union of the sets {1, 2, 5} and {1, 2, 6} is the set _______________(a) {1, 2, 6, 1}(b) {1, 2, 5, 6}(c) {1, 2, 1, 2}(d) {1, 5, 6, 3}I got this question at a job interview.This is a very interesting question from Set Operations in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» CORRECT answer is (b) {1, 2, 5, 6} To explain: The union of the SETS A and B, is the SET that contains those ELEMENTS that are either in A or in B. |
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| 228. |
The set of positive integers is _____________(a) Infinite(b) Finite(c) Subset(d) EmptyThe question was posed to me in an interview for internship.This key question is from Sets topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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| 229. |
Which of the following two sets are equal?(a) A = {1, 2} and B = {1}(b) A = {1, 2} and B = {1, 2, 3}(c) A = {1, 2, 3} and B = {2, 1, 3}(d) A = {1, 2, 4} and B = {1, 2, 3}I had been asked this question by my college director while I was bunking the class.My query is from Sets topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct answer is (c) A = {1, 2, 3} and B = {2, 1, 3} |
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| 230. |
What is the Cardinality of the Power set of the set {0, 1, 2}?(a) 8(b) 6(c) 7(d) 9The question was posed to me by my college professor while I was bunking the class.I would like to ask this question from Sets in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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| 231. |
What is the cardinality of the set of odd positive integers less than 10?(a) 10(b) 5(c) 3(d) 20This question was addressed to me during an online interview.My question is taken from Sets topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct option is (b) 5 |
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| 232. |
What is the Cartesian product of A = {1, 2} and B = {a, b}?(a) {(1, a), (1, b), (2, a), (b, b)}(b) {(1, 1), (2, 2), (a, a), (b, b)}(c) {(1, a), (2, a), (1, b), (2, b)}(d) {(1, 1), (a, a), (2, a), (1, b)}I got this question in an internship interview.Enquiry is from Sets in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct choice is (C) {(1, a), (2, a), (1, b), (2, b)} |
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| 233. |
The Cartesian Product B x A is equal to the Cartesian product A x B.(a) True(b) FalseThe question was posed to me by my school teacher while I was bunking the class.My question is based upon Sets in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct answer is (b) False |
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| 234. |
Power set of empty set has exactly _________ subset.(a) One(b) Two(c) Zero(d) ThreeI have been asked this question during an interview.My question is from Sets topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct ANSWER is (a) One |
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| 235. |
The set O of odd positive integers less than 10 can be expressed by _____________(a) {1, 2, 3}(b) {1, 3, 5, 7, 9}(c) {1, 2, 5, 9}(d) {1, 5, 7, 9, 11}This question was posed to me by my college director while I was bunking the class.Asked question is from Sets in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct OPTION is (B) {1, 3, 5, 7, 9} |
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| 236. |
A __________ is an ordered collection of objects.(a) Relation(b) Function(c) Set(d) PropositionI had been asked this question during a job interview.The doubt is from Sets topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The CORRECT ANSWER is (c) SET |
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| 237. |
Convert set {x: x is a positive prime number which divides 72} in roster form.(a) {2, 3, 5}(b) {2, 3, 6}(c) {2, 3}(d) {∅}I had been asked this question during an online exam.Question is taken from Types of Set in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct option is (C) {2, 3} |
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| 238. |
{x: x ∈ N and x is prime} then it is ________(a) Infinite set(b) Finite set(c) Empty set(d) Not a setI have been asked this question in final exam.Enquiry is from Types of Set topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» RIGHT answer is (a) INFINITE set Explanation: There is no EXTREME PRIME, number of primes is infinite. |
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| 239. |
Subset of the set A= { } is?(a) A(b) {}(c) ∅(d) All of the mentionedI have been asked this question in a national level competition.I need to ask this question from Types of Set in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct choice is (d) All of the mentioned |
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| 240. |
A = {∅,{∅},2,{2,∅},3}, which of the following is true?(a) {{∅,{∅}} ∈ A(b) {2} ∈ A(c) ∅ ⊂ A(d) 3 ⊂ AThe question was posed to me in unit test.This is a very interesting question from Types of Set in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Correct option is (C) ∅ ⊂ A |
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| 241. |
Which of the following is subset of set {1, 2, 3, 4}?(a) {1, 2}(b) {1, 2, 3}(c) {1}(d) All of the mentionedI had been asked this question during a job interview.Origin of the question is Types of Set topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» Right OPTION is (d) All of the mentioned |
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| 242. |
Express {x: x= n/ (n+1), n is a natural number less than 7} in roster form.(a) {^1⁄2, ^2⁄3, ^4⁄5, ^6⁄7}(b) {^1⁄2, ^2⁄3, ^3⁄4, ^4⁄5, ^5⁄6, ^6⁄7, ^7⁄8}(c) {^1⁄2, ^2⁄3, ^3⁄4, ^4⁄5, ^5⁄6, ^6⁄7}(d) Infinite setI had been asked this question by my school teacher while I was bunking the class.This interesting question is from Types of Set in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct choice is (c) {^1⁄2, ^2⁄3, ^3⁄4, ^4⁄5, ^5⁄6, ^6⁄7} |
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| 243. |
Number of power set of {a, b}, where a and b are distinct elements.(a) 3(b) 4(c) 2(d) 5I have been asked this question during an online interview.I'd like to ask this question from Types of Set topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» CORRECT CHOICE is (B) 4 Explanation: POWER SET of {a, b} = {∅, {a, b}, {a}, {b}}. |
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| 244. |
Write set {1, 5, 15, 25,…} in set-builder form.(a) {x: either x=1 or x=5n, where n is a real number}(b) {x: either x=1 or x=5n, where n is a integer}(c) {x: either x=1 or x=5n, where n is an odd natural number}(d) {x: x=5n, where n is a natural number}This question was posed to me in an online quiz.My query is from Types of Set topic in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct option is (c) {x: either x=1 or x=5n, where n is an odd NATURAL NUMBER} |
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| 245. |
{x: x is a real number between 1 and 2} is an ________(a) Infinite set(b) Finite set(c) Empty set(d) None of the mentionedI got this question in an online interview.This interesting question is from Types of Set in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» The correct answer is (a) INFINITE set |
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| 246. |
{x: x is an integer neither positive nor negative} is ________(a) Empty set(b) Non-empty set(c) Finite set(d) Non- empty and Finite setThe question was posed to me in class test.The query is from Types of Set in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics |
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Answer» RIGHT option is (d) NON- empty and Finite SET Explanation: Set = {0} non-empty and finite set. |
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