Question # 1

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A = B

B = C

A = C

None of these

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If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =

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5

{-3,-2,-1,0,1,2,3,4,5,6}

8

9

In a country, 55% of the male population has houses in cities while 30% have houses both in cities and in village. Find the percentage of the population that has house only in villages.

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45

30

25

50

The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

Z is the set of integers (Z.*) is a group with a * b = a +b +1, a,b ∈ G.then inverse of a is

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-a

a +1

-1-a

None of these

The set {-1,1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

The multiplicative inverse of x such that x = 0 is

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-x

Does not exist

1/x

±1

What is the number of elements of the power set of {0, 1}

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1

2

3

4

The set of real numbers is a subset of

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The set of natural numbers

The set of rational numbers

The set of integers

The set of complex numbers

For any two sets A and, A ⊆ B if

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x ∈ A ⇒ x ∈ B

x ∉ A ⇒ x ∉ B

x ∈ A ⇒ x ∉ B

None of these

If there is one-one correspondence between A and B, then we write.

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A = B

A⊆ B

A⊇ B

A ∼ B

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Singleton set

A set with two points

Empty set

None of these

The function f{(x, y) | y = ax²+ bx + c} is

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One-one function

Constant function

Onto function

Quadratic function

The identity elements with respect to subtraction is

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0

1

-1

Does not exist

Power set of X i.e P(X)..........under the binary operation of union U

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Forms a group

Does not form a group

Has no identity element

Infinite set although X is infinite

The number of subsets of a set having three elements is

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4

6

8

none of these

The number of subsets of B = {1,2,3,4,5}

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10

32

16

5

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none of these

If A=B, then

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A⊂B and B⊂A

A⊆B and B⊈A

A⊆B and B⊆A

None of these

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

A function whose range is just one elements is called

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One-one function

Constant function

Onto function

Identity function

The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

The many subset can be formed from the set {a,b,c,d}

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8

4

12

16

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

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None of these

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square root function

identity function

linear function

quadratic function

Φset is the ______ of all sets?

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Subset

Union

Universal

Intersection

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1/x

-x

2x

0.5 x

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