Answer:
2.4.1. To calculate how many litres of fuel are needed to travel 400km, we need to use the given fuel consumption rate of 8L/100km:
Fuel consumed for 400km = (8/100) x 400 = 32 litres
Therefore, 32 litres of fuel are needed to travel 400km.
2.4.2. To calculate how far you can travel with 50L of fuel, we can rearrange the formula from part 2.4.1 to solve for distance:
distance = (fuel consumed / fuel consumption rate) x 100
Plugging in the values we have:
distance = (50 / 8) x 100 = 625 km
Therefore, with 50 litres of fuel, you can travel 625 km.