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Class 8 · Mathematics

Compound growth

Interactive explanation Gamified quiz, feedback & rewards

0 XP0 mastered
Suggested-level exploration · Learning goals & preparation

By the end, you can…

  • Explain A = 100(1 + r/100)ⁿ
  • Change one input at a time and predict its effect before checking the model.
  • Apply the relationship in a quiz and explain the reasoning behind your answer.

Useful preparation: Basic arithmetic, fractions and reading simple diagrams. Suggested previous stop: Volume of a cylinder.

This topic has a suggested learning level. A matching chapter in the current NCERT edition has not been verified, so it is not labelled as syllabus coverage.

Interactive exploration · Class 8

Compound growth

Class 8
Final quantity (units)074.314922329701020Periods nGrowth per period (%) held at 5 · scale adjusts to values
The relationshipA = 100(1 + r/100)ⁿ
01 · How to explore

Make the idea your own

  1. 1Read the inputs and predict what will change.
  2. 2Change one parameter while keeping the other fixed.
  3. 3Explain the result using the diagram and the live values.
02 · Take it further

Notice the pattern

Equal percentage increases create unequal absolute increases.