Chapter 7: Comparing Quantities

Class 8 CBSE - Master discounts, taxes (GST), and compound interest calculations.

About This Chapter

Learn practical financial math - calculate discounts during sales, understand taxes like GST, and master compound interest for investments and loans.

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Chapter Sections

1

Introduction

Recap of ratios and percentages.
2

Finding Discounts

Calculate discounts and sale prices.

DiscountMarked PriceSale Price
3

Taxes (GST)

Understanding sales tax and GST.

Sales TaxVATGST
4

Compound Interest

Interest on principal plus accumulated interest.

Compound InterestCI vs SI
5

CI Formula

A = P(1 + r/100)ⁿ formula derivation.

Formula
6

Applications

Population growth, depreciation.

GrowthDepreciation
7

Exercise 7.1

Practice problems.
8

Exercise 7.2

Practice problems.
9

Exercise 7.3

Practice problems.
10

What Have We Discussed?

Chapter summary.
11

Enhanced Curriculum Support

Additional resources.