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PPSC Economics Chapter 13 Mathematics in Economics MCQs With Answers
Question # 1
Union of A with A, that is A U A.
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Complement of A
A itself
Con not be determined
None of these
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Question # 2
The elements in the Horizontal line in a matrix is called.
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Columns
Rows
Elements
Diagonal
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Question # 3
If A and B are symmetric matrices, then A +B is
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Symmetric
Non symmetric
Skew symmetric
Non skew symmetric
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Question # 4
If B is a subset of A ,then A is a
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Super set of B
Sub set of B
Empty set of B
Universal set of B
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Question # 5
If matrix A is matrix of order n x m and B is another matrix of order m x n, then BA will be the matrix of order.
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n x m
m x n
n x n
m x m
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Question # 6
The associative law of union is
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AU (BUC= (AUB)
U C
AUB = BUA
BUC = BUA
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Question # 7
If a consumer's budget constraint is given as P, X,+ Py Y = B thent he absolute slope of the budget line is.
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B
x/y
P/Py
None of these
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Question # 8
A set totality of elements from all possible sets is called.
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Union set
Intersection set
Universal set
Unit set
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Question # 9
If all the elements of a matrix of any order are zero, it is called.
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Identity matrix
Null matrix
Zero matrix
Both b and c
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Question # 10
The matrix A multiplies by its inverse will b e a.
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Identity matrix
Skew symmetric matrix
Idempotent matrix
Adjoin of a matrix
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Question # 11
The function y = 2x + 1 and x = 1/2 y - 1/2 are said to be.
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Non linear functions
Inverse functions
Step functions
All the above
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Question # 12
The objects constituting a set are called
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Estimates
Elements
Set object
Noe of these
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Question # 13
A set containing all the elements of the universal set except those of set A is called.
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Complement of set A
Complement of universal set
Union of A and universals set
Universal set itself
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Question # 14
Who is regarded as the founder of theory of sets.
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Adam Smith
Karl Frederich Gauss
George cantor
Euller
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Question # 15
If every elements of a raw or column of a square matrix A is zero, then the value of the determinant .
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Equal
Zero
One
Negative related
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Question # 16
If the determinant formed by the elements of the matrix A is equal to zero, then the matrix is.
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Skew symmetric
Singular
Symmetric
Non singular
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Question # 17
any number raise to the power zero is always equal to.
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zero
one
two
The number itself
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Question # 18
An equation in which all variables are raised to the first power is known as.
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Linear equation
Non linear equation
Quadratic equation
Polynomial of degree two
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Question # 19
Given or known values in an equation are called.
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Constants
Parameters
Coefficients
All of the above
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Question # 20
Relation between two numbers or variables are called.
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Function
Binary relation
Inverse relation
None of the above
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Question # 21
If every element of a set B is also an elements of A then
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A is a subset of B
B is a subset of A
A is not a subset of B
B is not a subset of A
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