June 2024 Paper 1 Q1
1 Work out the value of \(\quad \sqrt{\dfrac{t}{20}} \quad\) where \(\quad t = 2.42 \times 10^3\) [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| 2420 or 121 or \(1.21 \times 10^2\) | M1 | doesn’t need to be seen in a correct expression |
| 11 | A1 | accept \(\pm 11\) |
Additional guidance
| Condone \(t = 11\) | M1A1 |
| Condone \(1.1 \times 10^1\) or \(1.1 \times 10\) | M1A1 |
| \(\dfrac{1210}{10}\) or \(\dfrac{242}{2}\) | M1 |
| \(\dfrac{\sqrt{121}}{10}\) whilst incorrect would gain the method mark for 121 | M1 |