In a secondary school, the ratio of staff members to students is 1:91:91:9. The students are all either in Key Stage 3 or Key Stage 4. The ratio of Key Stage 3 students to Key Stage 4 students is 3:23:23:2.
What percentage of all the people in the school are Key Stage 4 students?
Practise OCR GCSE Maths Writing a Ratio as a Fraction or Linear Function with exam-style questions for Foundation and Higher tier. 60 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.