The problem requests the rule of three to determine the
number of Km covered along the trip.
Suppose that the
maximum capacity of your tank is of 55 l.
We'll apply the
rule of three:
8l are necessary for 100
Km
55 l are necessary for x
Km
x = 55l*100Km/8l
x =
55l*25Km/2l
x = 687.5
Km
So, if your tank capacity is of 55l,
you'll have to travel 687.5 Km to empty your
tank.
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