Question 1179391: A car uses 50 litres of fuel to complete a 400km along a highway.
How far will it go if it uses 20 litres? Answer by ikleyn(52832) (Show Source):
So the car makes = 8 km per liter of the fuel.
Using 20 liters, the car will cover 8*20 = 160 kilometers. ANSWER
Or, you can write the proportion =
and find the unknown distance x from it x = = 8*20 = 160 kilometers,
getting the same answer.