Question # 1

If a = {2m/2m < 9 ,m€ p} , the (n A) =

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{2,3,4,5,6,7,8}

{2,4,6,8............16}

{ 4, 6}

{2,3,5,7}

The set of even prime numbers is

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(2,4,6,8,10}

{2,4,6,8,10,12}

{1,3,5,7,9}

{2}

The statement that a group can have more than one identity elements is

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True

False

Fallacious

Some times true

If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =

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1

12

5

29

The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

If p and q are two statements then their conjunction is denoted by

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Φset is the ______ of all sets?

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Subset

Union

Universal

Intersection

Given X.Y are any two sets such that number of elements in X = 18, number of elements in set Y = 24,and number of elements in set X∪ Y =40,then number of elements in set x∩ Y =

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3

1

2

4

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The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

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A

A'

U

None of these

Power set of difference set N-W is

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Empty set

Infinite set

Singleton set

{0,∅}

Let A and B be two sets. If every element of A is also an element of B then

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The number of proper subset of A ={a.b.c.d} is

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3

6

8

15

A disjunction of two statement p and q is true

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p is false

q is false

Both p and q are false

One of p and q is true

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

If A and B are two sets then any subset R of A x B is called

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relation on A

relation on B

relation from A to B

relation from B to A

To each element of a group there corresponds ______ inverse element

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Two

One

No

Three

If A∩B=B, then n(A∩B) is equal to

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n(a)

n(a)+n(c)

n(c)

None of these

If a 1-1 correspondence can be established b/w two sets A and B, then they are called

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Equal sets

Equivalent sets

Over lapping sets

None of these

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3

1

2

4

The function whose range consists of just one element is called

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One-One Function

Identity Function

Onto Function

Constant Function

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

If S = {3,6,9,12.......}, then

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S = Four multiples of 3

S = Set of even numbers

S = Set of prime numbers

S = All multiples of 3

A conditional "if p then q" is denoted by

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The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

The set {1,-1,i,-i}

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Form a group w.r.t addition

Form a group w.r.t multiplication

Does not form a group w.r.t multiplication

Not closed under multiplication

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4

3

2

1

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Conclusion

Implication

Antecedent

Hypothesis

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ECAT Pre General Science Mathematics Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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