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Simple Interest — Revision Notes

ICSE · Class 7 · Mathematics

Simple Interest revision notes for ICSE Class 7 Mathematics: 4 topics in quick points. Part of the ICSE Class 7 Mathematics syllabus.

56 questions22 flashcards5 formulas & key relations5 concepts

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Key Topics to Revise

1

1. Terms Used in Simple Interest

  • Simple interest and interest mean the same thing.
  • Principal is the money borrowed or lent.
  • Rate of interest is the interest on every ₹100 for a fixed period.
2

2. Formula Rearrangement and Use

  • The main formula can be rearranged to find principal, rate, or time.
  • These rearranged forms are useful in direct exam questions.
  • Always keep the same units for rate and time.
3

3. Time and Rate Rules

  • Time must match the rate unit.
  • If the rate is per year, time must be in years.
  • If the rate is per month, time must be in months.
4

4. Worked Examples and Short Methods

  • Example-type questions often ask for interest, amount, principal, time, or rate.
  • Sometimes a shortcut method is possible by using a simple assumed principal.
  • A sum can double in a fixed time, and the rate can be found from that fact.

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Full Notes

Key Concepts

Simple interest is the extra moneyPrincipal is the sum of moneyRate of interest is the interestTime period is the timeAmount is the sum of

Frequently Asked Questions

What are the important topics in Simple Interest for ICSE Class 7 Mathematics?
Key topics in Simple Interest include Terms Used in Simple Interest, Formula Rearrangement and Use, Time and Rate Rules, Worked Examples and Short Methods. Study these first, then practise questions on each for Class 7 exams.
How should I revise Simple Interest for Class 7 exams?
Learn the core ideas first, then work through the 56 practice questions on Simple Interest. 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.

More resources for Simple Interest

All ICSE Class 7 Mathematics Revision Notes

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