Sets, Relations and Functions Test

Result

Sets, Relations and Functions Test - 29

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

A={(a,b) / b = 2a - 5} If (m,5) and (6,n) are the member of set A then m and n are respectively

A
5,7

B
7,5

C
2,3

D
5,3
Question 2
4 / -1

In a collage of 400 students every students read 5 newspapers and every news paper is read by 80 students. The number of news paper is

A
25

B
at the most 20

C
at the most 25

D
at least 25

Solution
Question 3
4 / -1

A
{-1,1,i,-i}

B
{-1,1}

C
{i, -i}

D
{-1,1,i}

Solution
Question 4
4 / -1

If A={n³ + (n+1)³ + (n+z)³ ; n ϵN} and B = {9n, n ϵ N} then

A
A ⊂ B

B
B ⊂ A

C
A = B

D
A' = B

Solution
Question 5
4 / -1

If n(A) = 6 and n (B) = 4 then minimum value of n(A - B) is

A
2

B
7

C
6

D
4

Solution
Question 6
4 / -1

If n(A) = 3, n(B) = 5 and n(A ∩ B) = 2 then n [(A × B) ∩ (B × A)] = ..........

A
5

B
3

C
4

D
6

Solution
Question 7
4 / -1

If A = {1,3,5,7,9,11,13,15,17}, B = {2,4,...18} and N is the universal set then A\'∪ (A ∪ (B ∩ B\')) is

A
A

B
B

C
A ∪ B

D
N

Solution
Question 8
4 / -1

Taking U = [1,5], A = {x / x ϵ N, x² - 6x + 5 = 0} A\' = ....

A
{1,5}

B
(1,5)

C
[1,5]

D
[-1, -5]

Solution
Question 9
4 / -1

Let R be a reflexive relation of a finite set A having n elements and let there be m ordered pairs in R. Then

A
m ≥ n

B
m ≤ n

C
m = n

D
None of these

Solution
Question 10
4 / -1

If A is the set of even natural numbers less then 8 and B is the set of prime numbers less than 7, then the number of relations from A to B is

A
2⁹

B
9²

C
3²

D
2⁹ - 1

Solution