Numeracy Foundation November 2021 Unit 2 Q6
6. Liam is following a recipe to make Welsh Cakes.
He places flour, butter and sugar in a mixing bowl.
These three ingredients have a total mass of 1920 g.
He checks the recipe and finds that:
- the mass of sugar is \(\dfrac{3}{16}\) of the total mass of these three ingredients,
- for every 90 g of sugar he needs to add one egg and 50 g of sultanas.
Calculate the number of eggs and the mass of sultanas that Liam needs to make his Welsh Cakes. [4]
Number of eggs ……………………
Mass of sultanas …………………… g
| Scheme | Marks | Comments |
|---|---|---|
| (Mass of sugar =) 1920 × 3 ÷ 16 or \(\dfrac{3}{16}\) × 1920 | M1 | Or 0.1875 × 1920 |
| 360 (g) | A1 | |
| (Number of eggs = 360 ÷ 90 =) 4 | B1 | Do not accept from incorrect working FT ‘their derived 360’ ÷ 90, rounded or truncated to a whole number of eggs |
| (Mass of sultanas = 360 ÷ 90 × 50 =) 200 (g) | B1 | FT ‘their derived 360’ ÷ 90 or FT ‘their 4’ × 50 provided ‘their 4’ ≠ 1 |