1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

In a certain two $$65 \%$$ families own cell phones, 15000 families own scooter and $$15 \%$$ families own both. Taking into consideration that the families own at least one of the two, the total number of families in the town is

A
20000
B
30000
C
40000
D
50000
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

If $$n(A)=2$$ and total number of possible relations from Set A to set B is 1024, then $$n(B)$$ is

A
512
B
20
C
10
D
5
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

If $$A=\{1,2,3,4,5,6\}$$, then the number of subsets of A which contain at least two elements is

A
64
B
63
C
57
D
58
4
KCET 2020
MCQ (Single Correct Answer)
+1
-0

If a relation $$R$$ on the set $$\{1,2,3\}$$ be defined by $$R=\{(1,1)\}$$, then $$R$$ is

A
Reflexive and symmetric
B
Reflexive and transitive
C
Symmetric and transitive
D
Only symmetric
KCET Subjects
EXAM MAP