Four trucks were used to make deliveries. The drivers recorded the number of miles driven and the amount of gasoline used.

To determine which truck drove the most miles per gallon of gas, we can calculate the miles per gallon (MPG) for each truck using the formula:

\[ \text{MPG} = \frac{\text{Miles Driven}}{\text{Gallons of Gas Used}} \]

Now, let's calculate the MPG for each truck:

• Truck A: \[ \text{MPG} = \frac{45}{3} = 15 \text{ MPG} \]

• Truck B: \[ \text{MPG} = \frac{24}{2} = 12 \text{ MPG} \]

• Truck C: \[ \text{MPG} = \frac{14}{1} = 14 \text{ MPG} \]

• Truck D: \[ \text{MPG} = \frac{36}{4} = 9 \text{ MPG} \]

Now, let's compare the MPGs:

• Truck A: 15 MPG
• Truck B: 12 MPG
• Truck C: 14 MPG
• Truck D: 9 MPG

The truck that drove the most miles per gallon of gas is Truck A, with 15 MPG.