Here is a list of nine numbers. One of the numbers is hidden.
| 4 | 2 | 7 | 3 | 5 | 2 | 6 | 4 | ? |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
The mean of the numbers is 4.
Find the value of the hidden number.
201 exam-style questions on Eduqas GCSE Maths Averages. Each one has a worked solution and a mark scheme showing where the marks go.