Arnold owns three cars. The first car averages 50 miles per gallon of gas. The second car averages 10 miles per gallon of gas. And the third car averages 15 miles per gallon of gas. He splits his 450-mile monthly driving mileage equally amongst his three cars.  If gas costs $2 per gallon, how much does he spend on gas each month?
How many miles does Arnold drive each month? ** He drives each vehicle 150 miles because 450 / 3 = <<450/3=150>>150
How many gallons of gas does the first car need? ** The first car will need 3 gallons of gas because 150 / 50 = <<150/50=3>>3
How many gallons of gas does the second car need? ** The second car will need 15 gallons of gas because 150 / 10 = <<150/10=15>>15
How many gallons of gas does the third car need? ** The third car will need 10 gallons of gas because 150 / 15 = <<150/15=10>>10
How many gallons of gas does Arnold need in total? ** He will need 28 gallons in total because 3 + 15 + 10 = <<3+15+10=28>>28
How much does Arnold spend on gas each month? ** This will cost him $56 because 28 x $2 = $<<28*2=56>>56
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