4MA0 Foundation June 2011 Paper 2 Q22
22 Six numbers have a mean of 5
Five of the numbers are
3 2 7 6 2
The other number is \(x\).
Work out the value of \(x\).
(3)
| Scheme | Marks |
|---|---|
| 6 × 5 (= 30) or 3 + 2 + 7 + 6 + 2 (=20) or (3 + 2 + 7 + 6 + 2 + “x”)/6 = 5 | M1 |
| “30” – “20” | M1 |
| 10 | A1 |
| (3) | |
| (Total 3 marks) |