Question

You need to drive to a game that is 250 miles away. You have 4.5 hours to get there. Which choice is closest to the minimum average speed you need to drive?

Answer 1

Speed: miles/hr
Therefore, to find speed, take the amount of miles you need to travel and divide by time. Since they already give you the time in hours, it will be pretty simple.
Speed=250 miles/4.5 hours=55.555 miles/hr
From the phrasing of your question, it sounds like this is a multiple choice, so you'll need to pick the answer closest to 55.555.

Answer 2

speed = distance / time

speed = 250 / 4.5
speed = 55.56...about 56 mph <=