SOLUTION: Car X and car Y traveled the same 80km route. If car X took 2 hours and car Y traveled at an average speed that was 50% faster than the average speed of car X, how long did it tak

Question 1025061: Car X and car Y traveled the same 80km route. If car X took 2 hours and car Y traveled at an average speed that was 50% faster than the average speed of car X, how long did it take car Y to travel the route?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = time in hrs for car Y
Let = speed in km/hr for car X
----------
Equation for car X:
(1)
Equation for car Y:
(2)
------------------
(1)
(1) km/hr
Plug this result into (2)
(2)
(2)
(2)
(2)
(2) hrs

Car Y's time is 1 hr and 20 min
---------------------------
check:
(2)
(2)
(2)
(2)
(2) km/hr
OK
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