Estimate the amount of gasoline that will be consumed in cars in the U. S. in the next thirty years. Assume that the total population of the U. S. is 350 millions and one of two people will drive an average distance of forty miles per day and the average mileage of the cars is 25 mpg.

1182.6 billion gallons of gasoline

Explanation:

For the 350 million population of America, one of two people represents half of this population, which is 135/2 = 67.5 million.

The average distance driven per day by this amount of people is 40 miles, and the average mileage is 25 mpg (miles per gallon).

This means that for the forty miles driven per day, the gallon of fuel used is

==> 25 miles = 1 gallon

      40 miles = gallons.

= 40/25 = 1.6 gallons, which means that each of the 67.5 million Americans consumes 1.6 gallons of gasoline on an average, per day.

There are 365 days in a week, so in a year, 365 x 1.6 = 584 gallons of fuel is used by one of these 67.5 million Americans.

Which is 584 x 67.5 million = 39.42 billion gallons per year.

In the next 30 years that is 30 x 39.42 billion gallons = 1182.6 billion gallons of gasoline

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