Numeracy Foundation November 2022 Unit 1 Q8
8. Martina is going to buy some milk to make pancakes.
| Small | Medium | Large |
|---|---|---|
| 500 ml for 40p | 1200 ml for £1.20 | 2000 ml for £2.50 |
Which size carton of milk offers the best value for money?
You must show all your working. [3]
| Scheme | Marks | Comments | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Compare small with large using same volume, e.g.
Compare medium with large using volume and cost, e.g.
| B1 | Accept for ‘their 4’ from 2000 ÷ 500 Ignore incorrect units given
| ||||||||||||||||||||
Compare the small with the medium using cost, e.g.
| B1 | Accept for ‘their 3’ from 1200 ÷ 400 Ignore incorrect units given
| ||||||||||||||||||||
| Conclusion ‘small’ based on accurate calculations from full comparison | B1 | Only FT from B1, B1 Must have consistent correct units or allow no units given |
8. Alternative method 1
| Scheme | Marks | Comments | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Method of comparing all 3 cartons, e.g. ml per 10p or p per 100ml or £ per 6000 ml | M2 | Ignore incorrect units given M1 for attempt to compare at least 2 of the 3 cartons
| ||||||||||||||||
| Conclusion ‘small’ based on accurate calculations from full comparison | A1 | Only FT from M2 Must have consistent correct units or allow no units given From division calculations, allow rounding and truncation provided it does not impact on being able to compare |