In a fuel station the service costs $1.75 per car, every liter of fuel costs 0.65$. Assuming that a company owns 12 cars and that every fuel tank contains 55 liters and they are all empty, how much money total will it cost to fuel all cars?
(a) 320$
(b) 380$
(c) 420$
(d) 450$
(e) 480$
The best answer is D.
The cost of fuel per car is: 1.75 + 0.65 x 55 = 37.5 $.
There are 12 cars so the sum is 37.5 x 12 = 450 $.