Sarah achieved a mean score of 74 in six quizzes. On her seventh quiz, she scored 85.
Find Sarah's mean score for the seven quizzes.
Practise WJEC GCSE Maths Averages with exam-style questions for Foundation and Higher tier. 48 questions, matched to the WJEC GCSE Maths (3320QD) specification and written in Unit 1, Unit 2 and Unit 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.