V=240V = 240V=240 correct to 3 significant figures
I=10.0I = 10.0I=10.0 correct to 1 decimal place
By considering bounds, work out the value of R R\,R to a suitable degree of accuracy. Give a reason for your answer.
Practise Edexcel GCSE Maths Bounds with exam-style questions for Foundation and Higher tier. 52 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.