Final answer:
The truck took 5 hours to make the trip from Boston to New York.
Step-by-step explanation:
To calculate the time it took for the truck to make the trip, we can use the formula: time = distance / speed. In this case, the distance is 225 miles and the speed is 45 mph. Plugging these values into the formula, we get: time = 225 miles / 45 mph = 5 hours.
Therefore, it took the truck 5 hours to make the trip from Boston to New York.