# Mathematics for Economic Analysis Solved MCQs

1.

A. estimates
B. elements
C. set objects
D. none of these
2.

## Who is regarded as the founder of theory of sets?

B. karl frederich gauss
C. george cantor
D. euller
3.

A. union
B. derivative
C. set
D. integral
4.

## “No two elements of a set are identical”. This statement is

A. always true
B. sometimes true
C. not true
D. all of the above is possible
5.

A. null set
B. empty set
C. void set
D. all the above
6.

## A set containing only one element is termed as

A. unit set
B. singleton set
C. both (a) and (b)
D. none of these
Answer» C. both (a) and (b)
7.

## A set of totality of elements from all possible sets is called

A. union set
B. intersection set
C. universal set
D. unit set
8.

## If two sets contain the same distinct elements, then they are called

A. equal sets
B. unequal sets
C. equivalent sets
D. all the above
9.

## If two sets contain same number of distinct elements but not the same elements are called

A. equal sets
B. unequal sets
C. equivalent sets
D. all the above
10.

A. pie diagrams
B. venn diagrams
C. histogram
D. ogives
11.

## If every element of a set B is also an element of A, then

A. a is a subset of b
B. b is a subset of a
C. a is not a subset of b
D. b is not a subset of a
Answer» B. b is a subset of a
12.

## In Venn diagram, the universal set is represented by

A. points within a rectangle
B. points within a circle
C. both (a) and (b)
D. none of these
Answer» A. points within a rectangle
13.

## “Null set is a proper subset of all the non-null sets”. This statement is

A. always true
B. sometimes true
C. never true
D. true subject to some conditions
14.

## Union of A with A, that is, A U A =

A. complement of a
B. a itself
C. cannot be determined
D. none of these
15.

A. a
B. a’
C. universal set
D. none of these
16.

## Union of A and a null set is equal to

A. intersection of a and null set
B. null set
C. both (a) and (b)
D. a
17.

## Union of A with B is same as union of B with A, that is, A U B = B U A is termed as

A. associative law of union
B. cumulative law of union
C. reflective law
D. all the above
Answer» B. cumulative law of union
18.

## The associative law of union is

A. a u (b u c) = (a u b) u c = a u b u c
B. a u b = b u a
C. a u b = a u c
D. b u c = b u a
Answer» A. a u (b u c) = (a u b) u c = a u b u c
19.

## If B is a subset of A, then A U B =

A. b
B. a
C. intersection of a and b
D. none of these
20.

## If a set C contain all the elements which are present in both the sets A and B, then set C is called

A. union of a and b
B. intersection of a and b
C. complement of a
D. complement of b
Answer» B. intersection of a and b
21.

## If two sets do not have any common element, then they are called

A. complement sets
B. joint sets
C. disjoint sets
D. none of these
22.

## A set containing all the elements of the universal set except those of set A is called

A. complement of set a
B. complement of universal set
C. union of a and universal set
D. universal set itself
Answer» A. complement of set a
23.

A. b – a
B. a – b
C. a’
D. b’
24.

## The set of all subsets of a set A is called

A. power set of a
B. complement of a
C. both (a) and (b)
D. none of these
Answer» A. power set of a
25.

## Any number raise to the power zero is always equal to

A. zero
B. one
C. two
D. that number itself