A lot, 1:6 + 3:4 +3 = .116789465 hope this helps....
Answer:
We must solve 3/5 x 3/5.
3/5 x 3/5 = 0.36
The units we'll use is because units are the unt we're given, and it is squared because it is the area of a shape.
Your final answer is 0.36
It can travel 125km with 5 liters
And 6 liters to travel 150 :)