London can travel approximately 60 miles with one gallon of gas and 660 miles with the remaining 11 gallons of gas.
To determine how far London can travel with one gallon of gas, we need to know the fuel economy of the vehicle. Let's assume the vehicle has an average fuel economy of 30 miles per gallon. In that case, London can travel 30 miles for every gallon of gas. Since London drove for 2 hours, we need to multiply the fuel economy by the time to get the distance traveled. So, London can travel 30 miles/gallon x 2 hours = 60 miles using one gallon of gas.
London currently has 11 gallons of gas left, so we can multiply the distance traveled with one gallon of gas by 11 to find the total distance London can travel with the remaining gas. Therefore, London can travel 60 miles/gallon x 11 gallons = 660 miles using the remaining gas.
The probable question may be:
How far can London travel with one gallon of gas if they drove for 2 hours and currently have 11 gallons of gas left?