SOLUTION: Two cars leave towns 720 km apart at the same time and travel toward each other. One car's rate is 20 km per hour less than the others. If they meet in 4 hours, what is the rate of
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Question 1008790: Two cars leave towns 720 km apart at the same time and travel toward each other. One car's rate is 20 km per hour less than the others. If they meet in 4 hours, what is the rate of the slower car? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! Call the faster car's rate, r.
The slower one's rate is r-20.
Since rate times time equals distance, we have
(r + r-20)(4) = 720
2r - 20 = 180
2r = 200
r = 100
r-20 = 80 km/hr
