Difference between revisions of "TADM2E 1.31"

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

Revision as of 22:18, 3 January 2020

Assumptions:

approx 400000 cars
each car needs to refuel once a week
each gas station is open 10 hours a day and refuels 10 cars an hour
there are enough stations to refuel all cars once per week

Calculation:

cars that can be fueled by 1 station in 1 week
10*10*7=700
a number of gas stations (rounded up):
ceil(400000/700)=572

A slightly different approach:

  • approx 300 mln cars in the US (1 car per each citizen).
  • each station is open 12hr a day, has 6 places for taking fuel, each fueling takes about 6 min
  • amount of cars using given gas station daily: $ 6 * 12 * \frac{60}{6} = 6 * 120 = 720 $
  • gas station (at least in Europe) are used always used, so: $ \frac{300 000 000}{720} \approx 333 000 $ gas stations.