A car travels 50km in 4 liters. How far will it go by 20 liters of petrol?

Answer 1

Well, you used 5 times as much fuel.
Shouldn't you have gone 5 times as far?

Answer 2

50km/4Liters = 12.5 km/Liter.
d = 12.5km/Liter * 20Liters =