In a survey of 160 people, 40% said they preferred walking. In a different group, 68 people said they preferred walking. Work out the difference between the number of people who preferred walking in the first group and the number in the second group.
Practise Eduqas GCSE Maths Percentages with exam-style questions for Foundation and Higher tier. 76 questions, matched to the Eduqas GCSE Maths (C300QS) specification and written in Component 1 and Component 2 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.