Skip to main content
Chapter 2 of 28
Chapter Summary

Compound Interest (Without Using Formula) — Chapter Summary

ICSE · Class 9 · Mathematics

Summary of Compound Interest (Without Using Formula) for ICSE Class 9 Mathematics. Part of the ICSE Class 9 Mathematics syllabus.

34 questions22 flashcards10 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Compound Interest (Without Using Formula)? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for chapter summary and more.

Free trial, no card needed.

A comparison illustrating how simple interest is calculated only on the original principal, while compound interest is calculated on the principal plus accumulated interest from previous periods, show
Super Tutor

One of 6 illustrations for Compound Interest (Without Using Formula) in Super Tutor — alongside flashcards, concept maps and practice questions.

Overview

Compound interest is interest calculated on a growing principal. The interest of each period is added to the amount, and that new amount becomes the principal for the next period. Because of this, the interest keeps increasing from one period to the next. Simple interest is different because it is a

Key Concepts

The money borrowed is called

The money borrowed is called the principal. The extra money paid for using the lender's money is called interest. The total money paid to the lender a

Interest is simple if it

Interest is simple if it is calculated on the original principal throughout the loan period. Its formula is I = (P × R × T)/100. When interest is ment

Money is said to be lent

Money is said to be lent at compound interest when the interest due at the end of a fixed period is added to the sum lent, and the new amount becomes

The period after which the principal

The period after which the principal changes is called the conversion period. It may be one year in yearly compounding or half a year in half-yearly c

Compound interest increases from period

Compound interest increases from period to period. The compound interest of the second year is always more than the compound interest of the first yea

Learning Objectives

  • Understand principal, interest, and amount.
  • Distinguish between simple interest and compound interest.
  • Find compound interest by calculating period by period.
  • Work with yearly, half-yearly, and fractional-time compounding.
  • Handle cases where rates change from one year to another.

Frequently Asked Questions

What are the important topics in Compound Interest (Without Using Formula) for ICSE Class 9 Mathematics?
Key topics in Compound Interest (Without Using Formula) include Core ideas and definitions, Worked patterns that repeat in exams, Key examples to remember. Study these first, then practise questions on each for Class 9 exams.
How should I revise Compound Interest (Without Using Formula) for Class 9 exams?
Learn the core ideas first, then work through the 34 practice questions on Compound Interest (Without Using Formula). Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

For serious students

Get the full Compound Interest (Without Using Formula) chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 9 Mathematics. Free to start, no card needed.