# Basic Numerical Skills Solved MCQs

1.

## George cantor is the

A. Father of Mathematics
B. Father of statistics
C. Father of Set Theory
D. None
Answer» C. Father of Set Theory
2.

## Which method is also known as tabular method

A. Roster method
B. Set builder form
C. Both a and b
D. None
Answer» A. Roster method
3.

## Which is also known as property method

A. Roster method
B. Set builder method
C. Both a and b
D. None
Answer» B. Set builder method
4.

## A set with no elements is a

A. Null set
B. Finite set
C. Infinite set
D. None
Answer» A. Null set
5.

## A set which is empty (or) consists of a definite number of elements is called

A. Null set
B. Finite set
C. Infinite set
D. None
Answer» B. Finite set
6.

A. A ≠ B
B. A = B
C. A € B
D. None
Answer» B. A = B
7.

A. Equal
B. Not equal
C. Similar
D. none
8.

## Which of the following are examples of null set

A. Set of even prime numbers
B. Set of letters in English alphabets
C. Set of odd natural numbers divisible by 2
D. All the above
Answer» C. Set of odd natural numbers divisible by 2
9.

## In the following state whether A=B

A. A= {4,8,12,16} B = {8,4,16,18}
B. A= {x : x is a multiple of 10 } B= {10, 15, 20, 25 ….}
C. A= {a, b, c, d} B = {d, c, b, a}
D. None
Answer» C. A= {a, b, c, d} B = {d, c, b, a}
10.

## A set ‘A’ is said to be a subset of a set B if every element of A is

A. Also an element of A
B. Also an element of B
C. Not an element of B
D. Not an element of A
Answer» B. Also an element of B
11.

A. ad – bc
B. ab – cd
C. bd – ac
D. bc - ad
12.

A. ab
B. 0
C. a2
D. b
13.

A. 2
B. - 2
C. 38
D. - 38
14.

## if the rows and columns of determinant are interchanged, the determinate value ………………….

A. Remains the same
B. The sign of the value is changed
C. Becomes zero
D. None
Answer» A. Remains the same
15.

## A matrix with equal number of rows and colume is called

A. Square matrix
B. Column
C. Row
D. none
Answer» A. Square matrix
16.

A. Unit
B. Diagonal
C. Scalar
D. Null
17.

A. Zero
B. Null
C. Diagonal
D. None
18.

A. Column
B. Row
C. Diagonal
D. Square
19.

## A square matrix in which elements in the diagonal are1 and rest is all zero is called

A. Diagonal matrix
B. Zero matrix
C. Identity matrix
D. none
Answer» C. Identity matrix
20.

## If all elements in the matrix are zero then it is

A. Diagonal matrix
B. Square matrix
C. Identity matrix
D. Zero matrix
Answer» D. Zero matrix
21.

A. Corresponding
B. Opposite
C. Same
D. none
22.

## A (B+C) = AB + AC is a

A. Associative law
B. Cumulative law
C. Distributive law
D. Corresponding law
Answer» C. Distributive law
23.

A. At
B. A
C. A(x)
D. None
24.

## A rectangular matrix does not possess

A. Inverse matrix
B. Square matrix
C. Zero matrix
D. None
Answer» A. Inverse matrix
25.

A. 6
B. 12
C. 8
D. 16