The number of miles that Arianna can travel on one gallon of gas more than Bo is 5.4 miles
How much further can Arianna travel on one gallon of gas more than Bo?
Bo:
Distance = 41.4 miles
Gas = 2 gallons
Unit rate = 41.4 miles / 2 gallons
= 20.7 miles per gallon
Arianna:
Distance = 104.4 miles
Gas = 4 gallons
Unit rate = 104.4 miles / 4 gallons
= 26.1 miles per gallon
Hence,
Distance more Arianna can travel than Bo = 26.1 - 20.7
= 5.4 miles