Higher June 2018 Paper 5 Q10
10 Ifsaw noticed this information on her car’s dashboard at the end of her journey.
She started her journey with a full tank of fuel and her miles travelled set to zero.
(a) Work out how far Ifsaw’s car can travel on a full tank of fuel. [3]
(b) What assumption have you made when answering part (a)? [1]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 440 | 3 | M2 for 165 ÷ 3 × 8 or M1 for 165 is \(1 - \dfrac{5}{8}\) soi or for 165 ÷ 3 soi If 0 scored, SC1 for answer 264 | M1 implied by 55 or 275 seen (from 165 ÷ 5 × 8) |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Correct comment | 1 | Any statement that implies the assumption that the rate of petrol consumption remains constant | e.g. Speed stays the same Same type of roads The car uses fuel at the same rate Does not get stuck in traffic Weather stays the same See AG |
Appendix: exemplar responses for Q10b
| Response | Mark |
|---|---|
| Travelled at same speed | 1 |
| Car burns fuel same as for first 165 miles | 1 |
| Same amount of fuel is used for each bar | 1 |
| She travels constantly and does not stop BOD (speed is constant) | BOD 1 |
| The roads are similar without having to stop and start in traffic | 1 |
| When the arrow reaches each point, she has travelled the same distance | 1 |
| The roads were similar for the rest of the journey | 1 |
| The tank empties at a consistent rate | 1 |
| Fuel gauge reading is accurate/correct | 1 |
| She did not have a fuel leak | 1 |
| She did not stop (not enough) | 0 |
| How efficiently she drove the car | 0 |
| The speed of the car | 0 |
| Car uses same amount of fuel each time | 0 |
| Every 4 bars would travel 165 miles (4 is incorrect – OK is 3 bars mentioned) | 0 |
| There are no diversions to her route | 0 |
| The fuel is used solely on covering distance (vague) | 0 |
| There are no hills ( not enough as there may have been on the first part of the journey) | 0 |