On a school trip the ratio of staff to students is 1:k 1:k\,1:k All of the students are from either year 7 or year 8. The ratio of year 7 students to year 8 students is 3:23:23:2
What fraction of all the people on the trip are year 7 students, in terms of kkk?
222 exam-style questions on Eduqas GCSE Maths Writing a Ratio as a Fraction or Linear Function. Each one has a worked solution and a mark scheme showing where the marks go.