Answer:
He has driven 400 miles.
Step-by-step explanation:
Total amount of gas = 16 gallons
Amount of gas left= 4 gallons
Amount of gas used = 16-4 = 12 gallons
No. of miles traveled in 0.03 gallons of gas = 1
No. of miles traveled in 1 gallon of gas = [tex]\frac{1}{0.03}[/tex]
No. of miles traveled in 12 gallon of gas = [tex]\frac{1}{0.03} \times 12[/tex]
= [tex]400[/tex]
Hence he has driven 400 miles.
