#### 10th Class Maths MCQ with Answers

W – N = ………………..

?

W

{?}

N

The relation R = {(1,2),(2,3),(3,3),(3,4)} IS:

Not a function

Into function

Onto function

One-One function

Coding formula of group data of the arithmetic mean is:

X? = ?fX/?f

X? = A + ?fu/?f x h

X? = ?fD/?f

X? = A + ?fu/?f

If variance is equal to 36 then the standard deviation will be:

-6

36

6

none of these

Which of the following is true?

P ?W

Z ? W

W? N

N ? P

The domain of R = {(0,2),(2,3),(3,3)(3,4)} is.

{0,2,3}

{0,3,4}

{2,3,4}

{0,2,4}

the set {0,±1, ±2,±3,……..} is:

Set of prime numbers

Set of integers

Set of natural numbers

Set of whole numbers

If union and intersection of two sets are equal then sets are…………..sets.

Overlapping

Super

Disjoint

Equal

The harmonic mean of the observation 0,15,12, is:

7.3

6.7

3.7

no harmonic mean

Venn diagram was first used by………………….

Arthur Cayler

John Napier

John Venn

Netwon

Which of the following is distributive property of union over intersection?

A? (B? C) = ( A? B)? (A? C)

A? (B?C)= (A?B)?C

A?(B? C) = (A?B)?(A?C)

A? (B ? C) = A? (B? C)

The set having only one element is called.

Subset

Null set

Power set

Singleton set

If f is a function from A to B, then f is onto function if:

Range f? A

Second element of all ordered pairs contained in f is not repeated.

Range f = B

Dom f = A

If R= { (a,2),(b,3),(c,3) }, then Dom R = ________________

{a,b,c}

{1,2,3}

{a,c}

{1,2}

Power set of an empty set is.

?

{?}

{a}

{?,{a}}

The different number of way to describe a set are.

4

1

2

3

If { x|x=p/q, q?0,p,q?Z} then this is a _____________

Set of irraional numbers

Set of rational number

Set of integers

Set of even numbers

The set {x} x? A and x? B } is…………………..

A? B

A – B

A? B

B – A

Formula to determine the size of a class is:

X

_{max}+ X_{min}number of groups/Range

X

_{max}– X_{min}Range/number of groups

If R = {(0,0),(8,2),(10,3),(14,12)}, then Dom R = ___________

{8,10,4}

{0,2,3,12}

{0,8,10,14}

{0,10}

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