10th Class Maths MCQ with Answers Chapter 5

O? E = ………………..

Z

?

E

O

If A? B then A? B = __________

B

None of these

A

?

O? E = …………….

Z

O

?

E

Which of the following is De-Morgan’s law?

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

(A?B)^C= A^c? B^c

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

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

If R ={(0,2),(2,3),(3,4)} then Dom (R) is:

{0,2,3}

{2,3,4}

{0,3,4}

{0,2,4}

The number of element in power set {1.2.3} is.

9

6

4

8

Power set of empty set.

{?}

?

{a}

{?,{a}}

The formula of range is:

groups/wight

X_max + X_min

none of these

X_max -X_min

Sum of the deviations of values x from its mean is always ”i.e ?(x-x?)’is to equal:

median

itself

zero

mode

If two sets have some elements common but not all are called……… sets

Super

Disjoint

Sub

OVERLAPPING