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Answer:
The number of barrels of crude oil required to run the car for a year is 52.9 barrels of crude oil
Explanation:
The information given are as follows;
Percentage of crude oil processed into gasoline = 45%
Distance achieved per gallon by car = 36 mi/gal
Distance driven per year = 36,000 miles
∴ Gasoline usage in one year = 1,000 gallons
Percentage of crude oil processed into gasoline = 45%
Hence, where 45% of the crude oil produces 1000, the volume of crude, x, from which the gasoline is sourced becomes;
x × 45/100 = 1000 gallons
x =100 × 1000/45 = 20000/9 gallons of crude
1 barrel of crude oil is approximately 42 gallons of crude oil
∴ 20000/9 gallons of crude = 20000/(9×42) barells of crude = 10000/
Which gives;
Which is 52.9 barrels of crude oil
Hence the number of barrels of crude oil required to run the car for a year = 52.9 barrels of crude oil.