48 mph means 48 miles per hour. Every hour, you go 48 miles, on average. So the first hour you go 48 miles and the second hour you go another 48 miles, so now you are 96 miles from your starting point, and so on.
How many 48 mile chunks, each of which represents 1 hour spent on the road, are in 600 miles? Hint: The question "how many pieces of a small size exist in a whole that has a larger size" is going to involve the operation of division in the process of finding the answer.
John
My calculator said it, I believe it, that settles it