Foundation November 2023 Paper 3 Q17
17 A computer game has five levels.
Each level has a maximum number of points.
These maximum numbers form an arithmetic progression.
The table shows the numbers for the first three levels.
| Level 1 | 400 |
| Level 2 | 750 |
| Level 3 | 1100 |
| Level 4 | |
| Level 5 |
Your score is the total of the points you achieve in each of the five levels.
Isaac’s best score is 1250 points less than the highest possible score.
Work out his best score. [4 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(750 - 400\) or \(1100 - 750\) or \((1100 - 400) \div 2\) or 350 | M1 | oe |
| \(1100 +\) their 350 or 1450 or \(1100 + 2 \times\) their 350 or 1800 | M1dep | oe |
| Addition or correct total of their Level 1 to Level 5 scores | M1 | their Level 4 and Level 5 scores must not be zero or blank 5500 implies M3 |
| 4250 | A1 | SC2 550 |
Additional guidance
| SC2 550 is for using Level 5 score 1800 as the highest possible score | |
| Embedded answer eg \(4250 + 1250 = 5500\) without 4250 as their answer | M1M1M1A0 |