Simple Interest

Maths: Edexcel GCSE Higher, topic 3.9.1

Simple Interest

Simple interest means that a percentage of the starting amount is paid at regular intervals.

Types of simple interest

Types of simple interest

  • Annual interest is paid once per year and can be described as an amount being paid ‘per annum’.
  • Monthly interest is paid once per month.
Calculating simple interest

Calculating simple interest

  • The amount paid from 9% simple interest per annum on a £200 saving over 3 years would be:
  • 3 × 0.09 × £200 = £54.

Test yourself on Simple Interest

  • What type of interest is it when a percentage of the starting amount is paid at regular intervals?

  • What would be the amount paid from 20% simple interest per annum on a £200 saving over 2 years?

  • What would be the amount paid from 5% simple interest per annum on a £500 saving over 4 years?

  • What would be the amount paid from 10% simple interest per annum on a £800 saving over 10 years?

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