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
