Question

You are traveling to Chicago for a job interview. You leave Toledo, Ohio, at 5:45 A.M. and arrive in Elkhart, Indiana, at 8:15 A.M.. The distance from Toledo to Elkhart is 136 miles; the distance from Toledo to Chicago is 244 miles. The speed limit is 65 mph. What is the minimum speed you must maintain in order to arrive in Chicago before 10:30 A.M.

Answer 1

To find the minimum speed need to reach Chicago based on this information, you will need to know how far it is from Elkhart to Toledo and how long it takes.

To get from Elkhart to Toledo is 108 miles. (244-136)

It will take 2.25 hours to get there. From 8:15 am to 10:30 am is 2 1/4 hours.

108 miles/2.25 hours = 48 miles per hour. You must travel at an average speed of 48 miles per hour.