For example if you saved 1000 at 4 simple interest you would earn 40 per year every year. The main issue is to change the 104 to 104 and then you can plug the numbers directly into your calculator these type of GCSE questions are generally on the calculator paper. Radio 4 podcast showing maths is the driving force behind modern science.
Compound interest is where we take an original value and increase it by a percentage.
Wwwjustmathscouk Simple Compound Interest Depreciation F - Version 3 January 2016 Simple Compound Interest Depreciation F A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA OCR Pearson-Edexcel and WJEC Eduqas. Find the compound interest earned in the 3 years. GCSE Maths Revision - Compound and simple interest and depreciation Questions Author. To calculate the amount of simple interest over 5 years you simply multiply the interest earnt in year one by five - 125 5 625.