A farmer bought a new tractor. Each year the tractor depreciates in value by 15%.
Work out the number of years it takes for the tractor to half in value.
Practise Edexcel GCSE Maths Compound Interest and Depreciation with exam-style questions for Foundation and Higher tier. 44 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.