MCQ 11 Mark
Out of 300 students of a college, each student reads five newspapers and each newspaper is read by 60 students, then the number of newspapers will be :
MCQ 21 Mark
The set of vowels in the word 'ALLAHABAD' is :
- A
$\{ A , A , A , A \}$
- ✓
$\{ A \}$
- C
$\{ L , L , H , B , D \}$
- D
$\{ A , L , H , B , D \}$
AnswerCorrect option: B. $\{ A \}$
View full question & answer→MCQ 31 Mark
$A =\{a, e, i, o, u\}$ and $B =\{i, o\}$, then correct option is :
- A
$A \subset B$
- ✓
$B \subset A$
- C
$A = B$
- D
AnswerCorrect option: B. $B \subset A$
View full question & answer→MCQ 41 Mark
If $A , B$ are two sets, then $( A \cup B )^{\prime}$ is equal to :
AnswerCorrect option: C. $A ^{\prime} \cap B ^{\prime}$
View full question & answer→MCQ 51 Mark
Which of the following is a finite set :
- A
$\{x: x \in N\}$
- B
$\{x: x>10 x \in N\}$
- ✓
$\{x: x<10, x \in N\}$
- D
$\{x: x=2 n, n \in N\}$
AnswerCorrect option: C. $\{x: x<10, x \in N\}$
View full question & answer→MCQ 61 Mark
If $U =\{1,2,3,4,5,6\}$ and $A =\{1,2,3,4,5,6\}$, then $A ^{\prime}$ is equal to :
- A
$\{0\}$
- B
$\{1,2,3\}$
- ✓
$\phi$
- D
$\{4,5,6\}$
AnswerCorrect option: C. $\phi$
View full question & answer→MCQ 71 Mark
If A and B are two sets then $A \cap( A \cup B )$ is :
View full question & answer→MCQ 81 Mark
If U is a universal set and A is non-empty set, then which of the following is true :
AnswerCorrect option: A. $A \cup A ^{\prime}= U$
View full question & answer→MCQ 91 Mark
If $x=\{a, e, i, o, u\}$ and $y=\{a, o, u\}$, then the set $x-y$ is :
- A
$\{a, e, i\}$
- B
$\{o, u\}$
- ✓
$\{e, i\}$
- D
$\{e, i, o\}$
AnswerCorrect option: C. $\{e, i\}$
View full question & answer→MCQ 101 Mark
If $A =\{2,0,-2\}$ and $B =\left\{x: x \in z, x^4-4 x^2=0\right\}$ then :
- A
$A \neq B$
- B
$A \subset B$
- ✓
$A = B$
- D
$B \subset A$
AnswerCorrect option: C. $A = B$
View full question & answer→MCQ 111 Mark
The number of subsets of a set with $n$ elements is :
- ✓
$2^n$
- B
$2 \times n$
- C
$n^2$
- D
$\frac{2}{n}$
View full question & answer→MCQ 121 Mark
$A =\{x: x$ is a letter of attract $\}$,
$B=\{y: y$ is a letter of cataract $\}$, then :
- A
$A \neq B$
- B
$B \subset A$
- C
$A \subset B$
- ✓
$A = B$
AnswerCorrect option: D. $A = B$
View full question & answer→MCQ 131 Mark
The number of even prime numbers is :
MCQ 141 Mark
If $U=\{1,2,3,4,5,6\}$ and $A=\{1,2,3,4,5,6\}$ and $C \cap A =\{2\}$ then set C is :
- ✓
$\{2\}$
- B
$\{2,3\}$
- C
$U$
- D
$A ^{\prime}$
AnswerCorrect option: A. $\{2\}$
View full question & answer→MCQ 151 Mark
If $A =\left\{x \mid x^2=4\right\}$ and $B =\left\{x \mid x^2-5 x+6=0\right\}$ then $A \cup B$ is :
- A
$\{2,3\}$
- B
$\{-2,3\}$
- C
$\{2,-3\}$
- ✓
$\{-2,2,3\}$
AnswerCorrect option: D. $\{-2,2,3\}$
View full question & answer→MCQ 161 Mark
$A \cap( A \cup A )^{\prime}$ is equal to :
- A
$A$
- B
$A ^{\prime}$
- ✓
$\phi$
- D
$U$
AnswerCorrect option: C. $\phi$
View full question & answer→MCQ 171 Mark
Which of the following is a infinite set?
- ✓
$\{x: x \in N$ and $x \geq 10\}$
- B
$\{x: x \in N$ and $x<10\}$
- C
$\{x: x \in N$ and $10 \leq x \leq 100\}$
- D
$\{x: x \in N$ and $x<1000\}$
AnswerCorrect option: A. $\{x: x \in N$ and $x \geq 10\}$
View full question & answer→MCQ 181 Mark
Set $\{x: x \in N, x$ is prime, $3 < x < 5\}$ is :
- A
$\{4\}$
- B
$\{3,5\}$
- ✓
$\{\}$
- D
AnswerCorrect option: C. $\{\}$
View full question & answer→MCQ 191 Mark
If $A =\{x: x=2 n, n \in N\}$, then which is true?
- A
$1 \in A$
- B
$0 \in A$
- ✓
$4 \in A$
- D
$\phi \in A$
AnswerCorrect option: C. $4 \in A$
View full question & answer→