Contents

1. Ratio, Proportion and Percentage

1. Ratio  

2. Proportion  

3. Variation   

4. Percentage  

2. Profit and Loss  

1. Introduction

2. Terms and Formulae for Profit and Loss 

3. Commission and Brokerage    

3. Interest and Annuity   

1. Simple Interest  

2. Compound Interest

3. Equated Monthly Installments (EMI)

4. Annuity

5. Shares 

6. Concept of Mutual Fund 

7. Change in Net Asset Value (NAV)  

8. Systematic Investment Plan (SIP) 

4. Matrices and Determinant    

1. Introduction

2. Multivariable Data

3. Definition of Matrix   

4. Types of Matrices

5. Algebra of Matrices

6. Determinants

7. Determinant of A Square Matrix    2

8. Equality of Matrices   

9. Transpose of a Matrix  

10.Positive Integral Powers of a Square Matrix 

11.Inverse of a Matrix    

12.Determinant of a Square Matrix   

13.Matrix of Co–Factors   

14.Ad-Joint of a Matrix   

15.Inverse of a Square Matrix

16.Linear Equations 

5. Linear Programming Problem (L.P.P.)    

1. Linear Programming Problem  

2. Solution of L.P.P. by Graphical Method 

3. Transportation Problem (T.P.)    

4. Tabular Representation of T.P.   

5. Mathematical Formulation of T.P.