Page 1
Set Theory
CPT Section D Quantitative
Aptitude Chapter 7
Brijeshwar Prasad Gupta
Page 2
Set Theory
CPT Section D Quantitative
Aptitude Chapter 7
Brijeshwar Prasad Gupta
Learning Objectives
Number system
Set Theory
Set operations
Product of Sets
MCQ
Page 3
Set Theory
CPT Section D Quantitative
Aptitude Chapter 7
Brijeshwar Prasad Gupta
Learning Objectives
Number system
Set Theory
Set operations
Product of Sets
MCQ
Number system
Natural numbers:- N
• N = {1,2,3……..}
• 0 N, -3 N, ? N,v2 N
Whole numbers:- W
• W = {0,1,2,3…….}
? ? ? ?
Page 4
Set Theory
CPT Section D Quantitative
Aptitude Chapter 7
Brijeshwar Prasad Gupta
Learning Objectives
Number system
Set Theory
Set operations
Product of Sets
MCQ
Number system
Natural numbers:- N
• N = {1,2,3……..}
• 0 N, -3 N, ? N,v2 N
Whole numbers:- W
• W = {0,1,2,3…….}
? ? ? ?
Number system
Integers:- I or Z
• I = {----- -3,-2,-1,0,1,2,3……..}
• Positive integers:- I
+
• I
+
= {1,2,3………}
• Negative integers:- I
-
• I
-
=
{-1,-2,-3………}
Remark:- 0 ? I
+
, 0 ? I
-
but 0 ? I
Page 5
Set Theory
CPT Section D Quantitative
Aptitude Chapter 7
Brijeshwar Prasad Gupta
Learning Objectives
Number system
Set Theory
Set operations
Product of Sets
MCQ
Number system
Natural numbers:- N
• N = {1,2,3……..}
• 0 N, -3 N, ? N,v2 N
Whole numbers:- W
• W = {0,1,2,3…….}
? ? ? ?
Number system
Integers:- I or Z
• I = {----- -3,-2,-1,0,1,2,3……..}
• Positive integers:- I
+
• I
+
= {1,2,3………}
• Negative integers:- I
-
• I
-
=
{-1,-2,-3………}
Remark:- 0 ? I
+
, 0 ? I
-
but 0 ? I
Number system
Prime numbers :- P
• P = {x:x is divisible by either one or
itself not by any other number
except 1}
• or
• P = {2,3,5,7,11,13,17……….}
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