Assume there are 100 million passenger cars in the United States and the average fuel consumption...

Assume there are 100 million passenger cars in the United States and 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?

Expert Solution

here,

the number of passengers , N = 100 millions = 10^8 passengers

the average distance by each car , s = 10 000 mi/yr

when average fuel consumption , m1 = 20 mi/gal

the gasoline used per year , V1 = N * s /m1

V1 =10^8 * 10,000 /20 gal/yr

V1 = 5 * 10^10 gal/yr

when average fuel consumption , m2 = 25 mi/gal

the gasoline used per year , V2 = N * s /m2

V2 =10^8 * 10,000 /25 gal/yr

V2 = 4 * 10^10 gal/yr

the gasoline saved per year , V = V1 - V2

V = 1 * 10^10 gal /yr

genius_generous answered 2 years ago

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