4400 Higher November 2005 Paper 3 Q7
7 The amount of petrol a car uses is directly proportional to the distance it travels.
A car uses 3 litres of petrol when it travels 50 km.
(a) Work out the amount of petrol the car uses when it travels 125 km. (2)
(b) Work out the distance the car travels when it uses 5.7 litres of petrol. (2)
| Scheme | Marks |
|---|---|
| 3 × 125/50 | M1 |
| 7.5 | A1 |
| (2) |
Notes
A1: cao
| Scheme | Marks |
|---|---|
| 50 × 5.7/3 or 5.7 = 3\(d\)/50 | M1 |
| 95 | A1 |
| (2) | |
| (4 marks) |
Notes
A1: cao