A gas station sells gasoline and diesel at $2.00/gallon and $1.75/gallon respectively. If the following data are

Question:

A gas station sells gasoline and diesel at $2.00/gallon and $1.75/gallon respectively. If the following data are known about the two fuels, compare the prices on the basis of MJ of energy: heating value: gasoline 47.3 MJ/kg, diesel 46.1 MJ/kg; density: gasoline 0.72 kg/L, diesel 0.78 kg/L.