GCSE · Percentages & growth

Compound growth and decayExam-style questions

Why repeated percentage change is a power of the multiplier, how compound interest differs from simple interest, and how to build growth and decay models.

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19 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    Write down the multiplier for an increase of 5%5\%.
    Level 1 · 1 markTry it
  2. 2
    £200200 is put in a savings account paying 3%3\% simple interest per year. How much interest is earned in 44 years?
    Level 1 · 2 marksTry it