Higher June 2022 Paper 2 Q10
10 Harry and Ellie each bought a printer and a hard drive.
Here is some information about how much they paid.
| Printer | Hard drive | |
|---|---|---|
| Harry | £80 | £25 |
| Ellie | 10% less than Harry | 20% more than Harry |
Ellie says,
‘‘In total, I paid more than Harry because 20% is greater than 10%’’
Is she correct?
Tick a box.
- Yes
- No
Show calculations to support your answer. [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(80 \times 0.9\) or 72 or \(25 \times 1.2\) or 30 or \(80 \times 0.1\) and \(25 \times 0.2\) or 8 and 5 or \(-8\) and 5 | M1 | oe eg \(80 \times (1 - 0.1)\) or \(25 + 25 \times 0.2\) or \(25 + 5\) implied by 102 or 3 or \(-3\) |
| No and correct valid amount(s) | A1 | eg no and 105 and 102 or no and 3 or no and \(-3\) or no and 8 and 5 or no and \(-8\) and 5 |
Additional guidance
| If neither box is ticked, No may be implied eg neither box is ticked and Ellie paid 3 less | M1A1 |
| Working and values may be seen by the table | |
| No and 105 with M1 not seen | M0A0 |
| No and 8 with M1 not seen | M0A0 |
| No and 5 with M1 not seen | M0A0 |
| Condone No and 8 and 5 with arithmetic error(s) seen eg 72 so 8 less 30 so 5 more 105 and 103 No (arithmetic error in calculating Ellie’s total) | M1A1 |
| Do not condone No and 8 and 5 with process error(s) seen eg \(80 - 8 = 72 \quad 25 - 5 = 20\) (process error, should be \(25 + 5\)) 105 and 92 No | M1A0 |