Sets and Functions Class 9 Maths MCQ Test

Sets and Functions

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This exam has 10 MCQs about sets and functions.
You have only 10 minutes to complete the exam.
If you do not answer any question within the allotted time, it will be marked as incorrect.
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1 / 10

If A = {6, 7, 8, 9, 10, 11, 12, 13}, then which one of the following sets is a multiple of 3 in set A ?

{9, 12}

{6, 9}

{6 ,11}

{6, 9, 12}

2 / 10

If A ∪ B = {a, b, c}, then
(i) A = {a, b}, B = {a, b, c}
(ii) A= {a, b, c}, B = {b, c}
(iii) A= {a, b}, B = {c}
Based upon the above facts which one of the following is true ?

i ও ii

ii

i

i, ii ও iii

3 / 10

If R is a relation from the set C to the set B, then which one of the following is true ?

R ⊂ C

C × B ⊆ R

R ⊂ B

R ⊆ C × B

4 / 10

Which one is the set of factors of 8 ?

{1, 2}

{8, 16, 24, …}

{2, 4, 8}

{1, 2, 4, 8}

5 / 10

If A = {6, 7, 8, 9, 10, 11, 12, 13}, then which one is the correct expression for the set A?

{ x ∈ N : 6 < x ≤ 13}

{ x ∈ N : 6 ≤ x <13}

{ x ∈ N : 6 < x < 13}

{x ∈ N : 6 ≤ x ≤ 13}

6 / 10

If A = {3, 4}, B = {2, 4}, x ∈ A and y ∈ B, then determine the relation x > y in A and B.

{(3, 4),(4, 2)}

{6, 9, 12}

{(3, 2),(4, 2)}

{3, 4}

7 / 10

If A = {6, 7, 8, 9, 10, 11, 12, 13}, then which one is the set of primes in A?

{6 ,8, 10, 12}

{7, 9, 11 ,13}

{7, 11, 13}

{9, 12}

8 / 10

Which one of the following expresses the set { x ∈ N : 13 < x < 17 and x is prime } in tabular method ?

{∅}

∅

{0}

{13, 17}

9 / 10

If A = {1, 2}, B = {2, 5}, which one of the following is the number of elements of P(A ∩ B) ?

3

8

2

1

10 / 10

If for two finite sets A and B
(i) A × B = {(x, y) : x ∈ N and y ∈ B}
(ii) If n(A) = a, n(B) = b, then n(A × B) = ab
(iii) Each member of A × B is an ordered pair.
Based upon the statements above which one of the following is true ?

i, ii ও iii

ii ও iii

i ও ii

i ও iii

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