SOLUTION: Over a 2 mile course, a car travels 15 mph over the first mile. What speed does the car need to travel over the 2nd mile to average 30 mph over the whole course

Question 252746: Over a 2 mile course, a car travels 15 mph over the first mile.
What speed does the car need to travel over the 2nd mile to average 30 mph over the whole course
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Over a 2 mile course, a car travels 15 mph over the first mile.
What speed does the car need to travel over the 2nd mile to average 30 mph over the whole course
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It's not possible.
15 mph for 1 mile takes 4 minutes
30 mph for 2 miles also takes 4 minutes, so time is up. He can't do it.
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