There are 120 people in a school canteen.
Half of the people in the canteen are in year 11 students.
The number of year 11 students in the canteen is three times the number of year 10 students.
The rest of the people in the canteen are year 9 students.
the number of year 9 students : the number of year 10 students = n:1 n : 1\,n:1
Work out the value of nnn.
You must show how you get your answer.
Practise Edexcel IGCSE Maths Writing and Simplifying Ratio with exam-style questions for IGCSE Maths. 15 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 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.