Foundation November 2022 Paper 1 Q13
13 At the end of each day, a driver works out the mean distance they have driven so far that week.
At the end of 5 days, the mean distance they have driven is 185.5 miles per day.
At the end of 6 days, the mean distance they have driven is 190 miles per day.
Work out how many miles the driver drove on the sixth day of that week.
.................... miles [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 212.5 | 4 | M1 for \(185.5 \times 5\) may be implied by 927.5 M1 for \(190 \times 6\) may be implied by 1140 M1 for their \(190 \times 6\) – their \(185.5 \times 5\) Alt method e.g. M2 for \((190 - 185.5) \times 5\) M1 for their \((190 - 185.5) \times 5 + 190\) | |