1MA0 Foundation November 2012 Paper 2 Q20
20 Use a calculator to work out
\[\frac{\sqrt{20.4}}{6.2 \times 0.48}\]Write down all the figures on your calculator display.
Give your answer as a decimal. (2)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(\dfrac{\sqrt{20.4}}{6.2 \times 0.48} = \dfrac{4.5166359}{2.976}\) | 1.5176(868) | 2 | B2 for 1.5176… (B1 for sight of 4.51(66359..) or 4.52 or 2.976 or 2.98 or 1.51 or 1.52 or 1.518 or or 1.517 or 1.5177 or \(\dfrac{\sqrt{510}}{5}\)) |