120 students are asked whether they like biology or chemistry or physics best.
52 of the students are in year 11, the rest are in year 10. 45 students like physics best. 20 of the year 11 students like biology best 16 of the 30 students who like chemistry best are in year 10.
Work out how many year 10 students like physics best.
Practise Edexcel GCSE Maths Two Way Tables with exam-style questions for Foundation and Higher tier. 40 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.