How much petrol did the car uses in traveling 300km
To determine how much petrol the car uses in traveling 300km, you would need to know the car's fuel efficiency, measured in either kilometers per liter (km/L) or liters per 100 kilometers (L/100km).
If the car's fuel efficiency is given in km/L, you can simply divide 300km by the fuel efficiency to find the amount of petrol used. For example, if the car's fuel efficiency is 15 km/L:
Petrol used = 300km / 15 km/L = 20 liters of petrol
If the car's fuel efficiency is given in L/100km, you need to convert it to km/L by using the following equation:
Fuel efficiency (km/L) = 100km / Fuel efficiency (L/100km)
Once you have the fuel efficiency in km/L, you can perform the same calculation as above to find the amount of petrol used.