1
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$A=\{a, b, c\}, B=\{b, c, d\}$$ and $$C=\{a, d, c\}$$ then $$(A-B) \times(B \cap C)$$ is equal to

A
$$\{(a, c),(a, d)\}$$
B
$$\{(a, b),(c, d)\}$$
C
$$\{(c, a),(d, a)\}$$
D
$$\{(a, c),(a, d),(b, d)\}$$
2
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $$n(A)=p$$ and $$n(B)=q$$, then the numbers of relations from the set $$A$$ to the set $$B$$ is

A
$$2^{p+q}$$
B
$$2^{p q}$$
C
$$p+q$$
D
$$p q$$
3
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is a singleton set?

A
$$\left\{x: x^2=4, \quad x \in R\right\}$$
B
$$\{x:|x|<4, \quad x \in N\}$$
C
$$\{x:|x|<-4, \quad x \in N\}$$
D
$$\left\{x: x^2=4, \quad x \in N\right\}$$
4
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Let $$X$$ and $$Y$$ be the set of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then $$n(X \cap Y)$$ is equal to

A
12
B
10
C
8
D
6
COMEDK Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12