Melvin invests £4000 in an account paying 2% compound interest per annum. Charlie invests £3500 in an account paying 1% compound interest per annum.
Work out the difference between the amount of money Melvin has after 3 years and the amount of money Charlie has after 3 years.
163 exam-style questions on Eduqas GCSE Maths Compound Interest and Depreciation. Each one has a worked solution and a mark scheme showing where the marks go.