Foundation June 2017 Paper 3 Q13
13
(a) The mass, \(m\) tonnes, of a girder is 12.7, correct to 1 decimal place.
Complete the error interval for the mass, \(m\).
\[\ldots\ldots\ldots\ldots \leqslant m \lt \ldots\ldots\ldots\ldots\][2]
(b) The length of a piece of wood is given as 8 metres, correct to the nearest metre.
The length of a metal rod is given as 8.5 metres, correct to 1 decimal place.
The length of a metal rod is given as 8.5 metres, correct to 1 decimal place.
Show that the piece of wood could be longer than the metal rod. [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 12.65 12.75 | 2 | B1 for one correct or both correct and reversed | For B1, correct value must be in correct place |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Accept any correctly matched pair in which wood > metal from \(8.45 \lt \text{wood} \leqslant 8.49[9\ldots]\) and \(8.45 \leqslant \text{metal} \leqslant 8.49[9\ldots]\) | 2 | Wood > metal does not need to be stated but it must be clear which measurement refers to wood and which to metal B1 for one measurement in range \(8.45 \lt \text{wood} \leqslant 8.49[9\ldots]\) seen or \(8.45 \leqslant \text{metal} \leqslant 8.49[9\ldots]\) seen | Eg “Wood 8.46 [m] but Metal 8.45 [m]” scores 2 marks Wood or 8 Metal or 8.5 For B1, measurement must be correctly associated with either wood or metal, as appropriate 8.45 seen as end of range Eg \(8.45 \leqslant 8.5 \lt 8.55\) scores 1 mark |