SOLUTION: A car going 60 mph is chased by a car going 80 mph. The first car is 1 mile ahead how many minutes will it take to catch up?

Question 323655: A car going 60 mph is chased by a car going 80 mph. The first car is 1 mile ahead how many minutes will it take to catch up?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You need 2 equations since there are 2 cars.
Let = the distance in miles the 80 mi/hr car has to go to catch
the 60 mi/hr car
Then = the distance the 60 mi/hr car goes until it is caught by
the 80 mi/hr car
They both will travel for he same amount of time - call it
Ist car:

2nd car:

Then, by substitution:

hrs
hrs x min/hr = 3 min
The 80 mi/hr car takes 3 min to catch the 60 mi/hr car
check:

mi
and

mi
OK
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