Andrew is able to drive 518 km on a full tank of petrol before having to refuel. The petrol tank on Andrew's car can hold 70 litres of petrol. 4.3.1 Write down the fuel consumption rate of Andrew's car in km per litres. 4.3.2How many litres of petrol will Andrew's car use to travel 285 km ? Round off your answer to one decimal place. 4.3.3 If Andrew sets out on a trip with 28 litres of petrol in his car, how far will he be abl to travel before he has to stop for petrol?

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UpStudy AI · Accepted Answer

1. The consumption rate is given by 
   $$
   \text{Consumption Rate} = \frac{518 \text{ km}}{70 \text{ L}}.
   $$
   Calculating the above, we have 
   $$
   \frac{518}{70} = 7.4 \text{ km/L}.
   $$

2. To find the litres used to travel $$285$$ km, we use 
   $$
   \text{Litres used} = \frac{285 \text{ km}}{7.4 \text{ km/L}}.
   $$
   Calculating, 
   $$
   \frac{285}{7.4} \approx 38.5 \text{ L}.
   $$
   So, the car uses approximately $$38.5$$ litres.

3. For a trip with $$28$$ litres of petrol, the distance travelled is 
   $$
   \text{Distance} = 28 \text{ L} \times 7.4 \text{ km/L}.
   $$
   Multiplying, 
   $$
   28 \times 7.4 = 207.2 \text{ km}.
   $$
   Thus, the car can travel approximately $$207.2$$ km before needing to refuel.
1. Andrew's car consumes 7.4 km per litre. 2. To travel 285 km, the car uses approximately 38.5 litres. 3. With 28 litres of petrol, Andrew can travel about 207.2 km before needing to refuel.

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