Foundation June 2022 Paper 1 Q13
13.
| Use: 1 pint = 600 ml |
In a café:
a half-pint glass of Lemon Crush costs £1.50,
a 500 ml bottle of Lemon Crush costs £2.
Show that the bottle of Lemon Crush is better value for money. [3]
| Scheme | Marks | Comments | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (½ pt = ) 300 ml or 500 ml = \(\frac{5}{6}\) pt si or uses a common multiple of 600 and 500 or 300 and 500 | B1 | Allow for 600 ml = £3; 300 ml implied by e.g. 150 ÷ 3 | ||||||||||||||||||||||||
| Valid method of comparison | M1 | Allow for use of a better pints/ml conversion e.g. 1 litre = 1.75 pints or 1 pint = 568 ml Examples of valid comparisons:
(Glass) 150 ÷ 3 per 100 ml and their 50p × 5 = … or (Bottle) 200 ÷ 5 per 100 ml and their 40p × 3 = …. For the M1 ignore units as long as the calculations are consistent M0 for considering the difference in capacity/cost | ||||||||||||||||||||||||
| Accurate comparison showing bottle is better value | A1 | FT ‘their conversion factor’ if used Examples of accurate comparisons:
(Glass) 50 p per 100 ml and 50p × 5 = £2.50 or (Bottle) 40 p per 100 ml and 40p × 3 = £1.20 Units may be missing but the values stated must then be in the same unit. If units are stated then they must be used correctly. | ||||||||||||||||||||||||
| (3) |