Foundation November 2023 Unit 2 Q8
8.
(a) Find the value of \(\dfrac{144 \times 30^2}{18}\).
Write your answer correct to the nearest thousand. [2]
Write your answer correct to the nearest thousand. [2]
(b) Calculate 4% of £250. [2]
(c) Laura thinks of a number.
\(\dfrac{1}{5}\) of her number is 14.
What is 50% of Laura’s number? [3]
\(\dfrac{1}{5}\) of her number is 14.
What is 50% of Laura’s number? [3]
50% of Laura’s number is ……………
| Scheme | Marks | Comments |
|---|---|---|
| 7000 | B2 | B1 for sight of 7200. |
| Scheme | Marks | Comments |
|---|---|---|
| 0·04 × (£)250 or equivalent | M1 | |
| (£) 10 ISW | A1 |
| Scheme | Marks | Comments |
|---|---|---|
| 14 × 5 or equivalent (= 70) | M1 | |
| 70 ÷ 2 or equivalent | m1 | FT ‘their 14 × 5’ ÷ 2 |
| = 35 | A1 | CAO |
8.(c) Alternative method 1
| Scheme | Marks | Comments |
|---|---|---|
| 1/5 = 20% AND 10% = 7 | B1 | |
| 7 × 5 | M1 | FT ‘their 7’ provided 1/5 has been considered along with 50(%) |
| = 35 | A1 | CAO |
8(c) Alternative method 2
| Scheme | Marks | Comments |
|---|---|---|
| 14 × 2·5 | M2 | May be seen in stages. e.g. 14 + 14 + 0·5 × 14 |
| = 35 | A1 | CAO |