Question # 1

Which of the following statement is true?

Choose an answer

A set is a collection of non-empty object

A set is a collection of only numbers

a set is any collection of things

a set is well-defined collection of objects

Choose an answer

Addition

Subtraction

Multiplication

None of these

The set (Z, +) forms a group

Choose an answer

Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t multiplication

Doesn't form a group

The number of different ways of describing a set is

Choose an answer

One

Two

Three

Four

Choose an answer

1

12

5

29

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

Choose an answer

Addition

Multiplication

Subtraction

Division

The multiplicative inverse of -1 in the set {1-,1} is

Choose an answer

1

-1

±1

0

Does not exist

Choose an answer

A

A'

U

None of these

If A⊆ B, and B is a finite set, then

Choose an answer

n (a) < n(B)

n(B)<(A)

n(A)≤ n (B)

n(A)≥ n(B)

Choose an answer

The complement of set A relative to universal set U is the set

Choose an answer

The set of natural is a semi group w.r.t

Choose an answer

Addition

Division

Subtraction

None of these

The set {x +iy / x, y ∈ Q} forms a group under the binary operation of

Choose an answer

Addition

Multiplication

Division

Both addition and multiplication

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

Choose an answer

Relation in B

Range

Domain

Relation In A

The set which has no proper subset is

Choose an answer

{0}

{}

{∅}

None of these

The set of months in a year beginning with S.

Choose an answer

{September, October, November}

Singleton set

Null set

Empty set

Choose an answer

Addition

Multiplication

Division

Both addition and multiplication

If A = {2m/m³= 8 , m€ Z} then A =

Choose an answer

{1,8,27}

{4}

(2,4,6}

{2,16,54}

Choose an answer

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

Choose an answer

1

12

5

29

The set R is ______ w.r.t subtraction

Choose an answer

Not a group

A group

No conclusion drawn

Non commutative group

More Classes

Other Links

ECAT Mathematics Chapter 23 MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer