4MA0 Foundation June 2011 Paper 1 Q14
14
(a) Use your calculator to work out the value of \[\frac{24.1}{8.4 - 7.8} - 6.2^2\]Write down all the figures on your calculator display. (2)
(b) Give your answer to part (a) correct to 3 significant figures. (1)
| Scheme | Marks |
|---|---|
| \(\dfrac{24.1}{0.6} - 38.44 = 40.166\ldots - 38.44\) | M1 |
| 1.726666667 | A1 |
| (2) |
Notes
M1: for 0.6 or \(\dfrac{3}{5}\) or 40.166… or \(40\dfrac{1}{6}\) or 38.44 or \(38\dfrac{11}{25}\)
A1: Accept if first 4 figures correct (rounded or truncated)
Also accept \(1.72\dot{6}\) or \(\dfrac{259}{150}\) or \(1\dfrac{109}{150}\)
| Scheme | Marks |
|---|---|
| 1.73 | B1 |
| (1) | |
| (Total 3 marks) |
Notes
B1: ft from (a) if answer to (a) is a decimal with more than 3 sf