which car has the greatest efficiency?
a 1,200 kg car that travels 15 km per liter of fuel?
a 900 kg car that travels 20 km per liter?
a 900 kg car that travels 15 km per liter?
a 1200 kg car that travels 20 km per liter?
To determine the car with the greatest efficiency, we need to calculate the fuel consumption per kilometer for each car. This can be done by taking the reciprocal of the kilometers per liter.
For the first car:
Fuel consumption per kilometer = 1/15 = 0.067 liters/km
For the second car:
Fuel consumption per kilometer = 1/20 = 0.05 liters/km
For the third car:
Fuel consumption per kilometer = 1/15 = 0.067 liters/km
For the fourth car:
Fuel consumption per kilometer = 1/20 = 0.05 liters/km
Comparing the fuel consumption per kilometer, we can see that the second and fourth cars have the same efficiency of 0.05 liters/km. Therefore, both the 900 kg car that travels 20 km per liter and the 1,200 kg car that travels 20 km per liter have the highest efficiency.