Quantitative Aptitude forms an integral part of examinations conducted for campus placements, entry into banking sector, civil services and to public sector services through SSC (staff selection commission) examination. This book focuses primarily on the preparation of Bank P.O and clerical examinations, SSC, RRB, CSAT, campus placements and entrance to tier II MBA courses

1: Number System

1.1 Introduction

1.2 Understanding Numbers

1.3 Conversion of a Number from Non-terminating and Repeating Decimal to the Form p/q

1.4 Some Other Categorization of Numbers

1.5 Divisibility Rules of Numbers

1.6 Rules to be followed for Remainders

1.7 Factors, LCM and HCF

1.8 Concept of the Last Digit

1.9 Alpha-Numerals



2: Percentages

2.1 Introduction

2.2 Percentage Equivalent of Fractions

2.3 Concept of Multiplication Factor

2.4 Base and Base Change



3: Profit, Loss and Discount

3.1 Introduction

3.2 Method of Weighted Average



4: Simple Interest and Compound Interest

4.1 Introduction

4.2 Simple Interest

4.3 Compound Interest

4.4 Concept of Effective Rate of Interest

4.5 Difference between SI and CI at the End of Two Periods



5: Ratio and Proportion

5.1 Introduction

5.2 Properties of Ratios

5.3 Applications of Ratios

5.4 Proportionality and Variation



6: Average

6.1 Introduction



7: Ages

7.1 Introduction

7.2 Problems on Ages



8: Alligation, Mixtures and Solutions

8.1 Introduction

8.2 Alligation

8.3 Replacement of Part of a Mixture



9: Time, Speed and Distance

9.1 Introduction

9.2 Basic Concepts

9.3 Problem Types Based on Time, Speed and Distance



10: Time and Work

10.1 Introduction

10.2 Problems Involving Individual Efficiencies

10.3 Problems Involving Group or Combined Efficiencies



11: Basic Algebra

11.1 Introduction

11.2 Basis of Classification

11.3 Linear Equation

11.4 Quadratic Equation

11.5 Progressions



12: Permutation and Combination

12.1 Introduction

12.2 Fundamental Principle of Counting

12.3 Concept of Combination

12.4 Permutation



13: Probability

13.1 Introduction

13.2 Elements of Probability

13.3 Problems Types Based on Probability



14: Set Theory

14.1 Introduction

14.2 Representation of a Set

14.3 Venn Diagrams

14.4 Types of Sets

14.5 Subset of a Set

14.6 Operations on Sets



15: Clocks

15.1 Introduction

15.2 Concept of Clocks

15.3 Other Important Concepts of Clocks

15.4 Concept of Incorrect Clocks



16: Calendar

16.1 Introduction

16.2 Concept of Odd Days

16.3 Definition of a Leap Year

16.4 Counting Odd Days

16.5 Concept of Total Odd Days in 100, 200, 300 and 400 Years

16.6 Problems-Types Based on Calendars



17: Logarithms

17.1 Introduction

17.2 Important Formulas of Logarithms



18: Indices

18.1 Introduction

18.2 Fractional Indices

18.3 Rules for Indices



19: Mensuration

19.1 Introduction

19.2 Cuboid

19.3 Cube

19.4 Cylinder

19.5 Cone

19.6 Sphere

19.7 Mensuration Problems Based on Different Geometric Figure



20: Data Sufficiency

20.1 Introduction

20.2 Structure of a Data Sufficiency Problem

20.3 Approach to a Data Sufficiency Problem



21: Data Interpretation

21.1 Introduction

21.2 Concepts in Data Interpretation



Solved Examples

Practice Exercise

Answer Key

Answers and Explanations

Mock Test 1 to 9