The mean score of 10 students in a mathematics test is 15. The mean score of 4 of these students is 12.
Calculate the mean score of the other 6 students.
Practise Edexcel GCSE Maths Averages with exam-style questions for Foundation and Higher tier. 48 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.