Numeracy Foundation June 2017 Unit 1 Q5
5. Huw is going to make vegetable soup for 6 people.
A recipe for 2 people uses 10 ounces of potatoes.
He has placed some potatoes on his weighing scales as shown below.
The weighing scales display the mass in grams.
Huw knows that 1 ounce is approximately 28 grams.
How many more grams of potatoes does Huw need to make vegetable soup for 6 people? [5]
Extra mass of potatoes needed is …………… grams
| Scheme | Marks | Comments |
|---|---|---|
| (potatoes for 6 people =) 30 (ounces) | B1 | |
| (potatoes for 6 or 30 ounces =) 30 × 28 = 840 (grams) | M1 A1 | FT ‘their 30 ounces’ (including 10 ounces) |
| (Scale reading =) 480 (grams) | B1 | |
| (Need 840 – 480 =) 360 (grams) | B1 | FT ‘their 840’ and ‘their 480’ provided FT answer >0 |
Alternative method for the first 3 marks:
| Scheme | Marks |
|---|---|
| (potatoes for 2 people or 10 ounces=10 × 28) = 280 (grams) | B1 |
| (potatoes for 6 people or 30 ounces=) 280 × 3 | M1 |
| FT ‘their 10 × 28’ × 3 for M1 and possible A1 if ‘their 10 × 28’ × 3 correctly evaluated. | |
| 840(grams) | A1 |
Alternative method for the first 3 marks:
| Scheme | Marks |
|---|---|
| (potatoes for 1 person or 5 ounces= 5 × 28) = 140(grams) | B1 |
| (potatoes for 6 people or 30 ounces=) 140× 6 | M1 |
| FT ‘their 5 × 28’ × 6 for M1 and possible A1 if ‘their 5 × 28’ × 6 correctly evaluated. | |
| 840(grams) | A1 |
Both alternatives are printed in the comment column of the original.