Higher November 2020 Paper 1R Q7
7 Pedro drove from Toulouse to Montpellier in 2 hours 42 minutes.
He drove at an average speed of 90 km/hour.
Janine drove from Toulouse to Montpellier along the same route as Pedro.
The journey took her 3 hours.
Work out Janine’s average speed for the journey.
(4)
| Scheme | Marks |
|---|---|
| Use of 2 hrs 42 mins = 2.7 hrs or 162 mins | B1 |
e.g. 90 × 2.7 (= 243) or e.g. \(\dfrac{90}{60} \times 162 (= 243)\) or e.g. \(\dfrac{S}{90} = \dfrac{2.7}{3}\) | M1 |
| e.g. “243” ÷ 3 or \((S =)\; 90 \times \dfrac{2.7}{3}\) | M1 |
| 81 | A1 |
| (4) | |
| (4 marks) |
Notes
M1: for use of \(D = S \times T\) (accept use of their time e.g. 90 × 2.42)
or for setting up an equation using proportion
M1: (dep on M1) for their \(D\) ÷ 3
or for solving their equation