Question

Alvin completely filled his 21-gallon

tank of gas with regular fuel for $55.23.
As he left the gas station, he noticed
the station across the street sold
regular fuel priced at $2.56 per gallon.
How much money could Alvin have
saved per gallon if he had gone to the
station across the street?

Answer 1

7 cents per gallon if his tank was completely empty upon filling

Explanation:

55.23/21=2.63 per gallon at original gas station

2.63-2.56=.07 per gallon saved

Answer 2

He would have saved 7 cents a gallon.

Explanation:

The gas he filled up on costed 2.63 a gallon

The gas across the street costed 2.56 per gallon

He spent 55.23 on gas, if he filled up at the station across the street he would have paid 53.76.