How much petrol the car uses in traveling 300km
The amount of petrol a car uses in traveling 300km depends on the car's fuel efficiency, which is usually measured in liters per kilometer (L/km) or kilometers per liter (km/L).
To determine the amount of petrol used, you would need to know the car's fuel efficiency.
For example, if the car's fuel efficiency is 10 km/L, it would consume 300 km / 10 km/L = 30 liters of petrol.
However, without knowing the car's fuel efficiency, it is difficult to provide an exact answer.