Assume there are 100 million passenger cars in the UnitedStates and that the average fuel consumption is 20 mi/gal ofgasoline. If the average distance traveled by each car is 10 000mi/yr, how much gasoline would be saved per year if averagefuel consumption could be increased to 25 mi/gal?

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Asked Dec 16, 2019
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Assume there are 100 million passenger cars in the United
States and that the average fuel consumption is 20 mi/gal of
gasoline. If the average distance traveled by each car is 10 000
mi/yr, how much gasoline would be saved per year if average
fuel consumption could be increased to 25 mi/gal?

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Expert Answer

Step 1

Gasoline consumed by a car in a year when the mileage 20 mi/gal is,

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distance travelled by a carin a year gasolineused by a car= mileage 10,000mi/year 20 mi/gal = 500 gal/year

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Step 2

Amount of gasoline used by 100 million cars is,

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(500 gal/year) 1 = "cars 106 (500 gal/year) | 100 million 1million = 5.0 x10° gal /year

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Step 3

Gasoline consumed by a car in a year ...

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10,000mi/year 25 mi/gal gasolineused= = 400 gal /year

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