Relation & Functions Quiz 1 – Punjab Meritorious School Preparation Portal

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Email

School Name with City

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Let A = { -1, 2, 5, 8}, B = { 0,1, 3, 6, 7} and R be the relation ‘is one less than’ from A to B, then how many elements will R contain?

2

3

5

9

If A = {1, 2, 5, 6} and B = {1, 2, 3}, then what is (A x B) Ç (B x A) equal to

{(1, 1), (2, 1), (6, 1), (3, 2)}

{(1, 1), (1, 2), (2, 1), (2, 2)}

{(1, 1), (2, 2)}

{(1, 1), (1, 2), (2, 5) (2, 6)}

If a set A contains 4 elements, then what is the number of elements in A x P (A) ?

16

32

64

128

If A = {1, 2, 3, 4} and B = { 5, 6, 7}, then number of

relations from A to B is equal to

If A x B = {(1,1), (1, 2), (1, 3),(2,1),(2, 2), (2, 3)}, then A is equal to

{1, 2}

{1, 2, 3}

{2, 3}

None of these

Sets A and B have n elements in common. How many elements will (A x B) and (B x A) have in common?

The order of a set A is 3 and that of a set B is 2. What is the number of relations from A to B?

4

6

32

64

Let X be any non-empty set containing n elements. Then, what is the number of relations on X?

If A = {1, 2, 3}and B = {3, 4},then(A È B)x(A Ç B) is

{3, 3}

{(1, 3), (2, 3), (3, 3), (1, 4), (2, 4), (3, 4)}

{(1, 3), (2, 3), (3, 3)}

{(1, 3), (2, 3), (3, 3), (4, 3)}

Consider the following with regard to a relation R on a set of real numbers defined by xRy if and only if 3x + 4y = 5

I and II

I and III

II and III

I, II and III

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