# Business Maths Class – Live

## UNIT I

• Elements of Set Theory.
• Definition.
• Symbols.
• Roaster Method and Rule.
• Method.
• Types of Sets.
• Union & Intersection.
• Sub-sets.
• Complement Set .
• Difference of Two Sets.
• Family of Sets.
• Venn Diagrams.
• Demorgan’s Laws.

## UNIT II

• Ratio.
• Definition.
• Inverse of ratio .
• Dividing a number into a given ratio.
• Commensurable and incommensurable quantities.
• Compound ratio – Duplicate ratio.
• Triplicate ratio – Sub-duplicate ratio.
• Sub-triplicate ratio – Continued ratio
• Theorems on ratio.

## UNIT III

• Interest calculation.
• Simple interest.
• Compound interest.
• Depreciation.
• Percentage.

## UNIT IV

• Matrix – Definition – Types – Addition, Subtraction and Multiplication of Matrix
• Scalar multiplication(Simple problems only)
• Determinants of order two and three.
• Cramer’s Rule.
• Solution of a system of Linear equation.
• Cofactor.
• Inverse of a matrix.

## UNIT V

• Theory of Probability
• Theorems
• Conditional Probability
• Baye’s Theorem
• Mathematical Expectations. (Simple Problems only)

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