Bunuel
In a fuel station the service costs $1.15 per car, every liter of fuel costs 0.4$. Assuming that you own 2 sports cars and 2 executive cars and all fuel tanks are empty. How much will it cost to fuel all cars together if a sports car tank is 32 liters and an executive car tank is 75% bigger?
A. 37.5$
B. 75$
C. 87.5$
D. 94.5$
E. 98.4$
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!Service cost per car = $ 1.15
Fuel cost per litre = $ 0.4
We have 2 Sports cars and 2 Executive cars.
Capacity of Sports car = 32 litres.
Capacity of Executive car = 75% more = (1+(3/4)) = 7/4*(32) = 56 litres.
Total Capacity = 32 + 56 = 88 litres.
Total cost of fuel for 1 sports car and 1 executive car = 88*(0.4) = $35.2
Hence, for 2 sports car and 2 Executive car = 2*($35.2) =
$70.4 Service cost per car = $1.15
Service cost for Four cars = 4* $1.15 =
$4.60 Total cost = $70.4 + $4.60 =
$75 Option B