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| − | '''Assumptions''':
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| − | : approx 400000 cars
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| − | : each car needs to refuel once a week
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| − | : each gas station is open 10 hours a day and refuels 10 cars an hour
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| − | : there are enough stations to refuel all cars once per week
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| − | '''Calculation''':
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| − | : cars that can be fueled by 1 station in 1 week
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| − | : 10*10*7=700
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| − | : a number of gas stations (rounded up):
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| − | : ceil(400000/700)=572
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| − | ----
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| − | '''A slightly different approach''':
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| − | * approx 300 mln cars in the US (1 car per each citizen).
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| − | * each station is open 12hr a day, has 6 places for taking fuel, each fueling takes about 6 min
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| − | * amount of cars using given gas station daily: <math>6 * 12 * \frac{60}{6} = 6 * 120 = 720 </math>
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| − | * gas station (at least in Europe) are used always used, so: <math>\frac{300 000 000}{720} \approx 333 000</math> gas stations.
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