SOLUTION: Peter can drive 25 mph faster on the highway than he can on country roads. In the time it would take Peter to drive 70 mi on country roads, he could drive 120 mi on the highway. Ho

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Question 1114056: Peter can drive 25 mph faster on the highway than he can on country roads. In the time it would take Peter to drive 70 mi on country roads, he could drive 120 mi on the highway. How fast can he drive on each type of road?
Found 3 solutions by amalm06, greenestamps, josgarithmetic:
Answer by amalm06(224)   (Show Source): You can put this solution on YOUR website!
Denote highway speed as Vh and country speed as Vc. Then













Vh=60,Vc=35 (Answer)
Answer by greenestamps(13216)   (Show Source): You can put this solution on YOUR website!


The difference in speeds is 25mph; the difference in distances is 2 hours.

So the speed he can go on country roads is 70/2 = 35mph; the speed he can go on the highway is 120/2 = 60mph.
Answer by josgarithmetic(39631)   (Show Source): You can put this solution on YOUR website!
              SPEEDS       TIME      DISTANCE
COUNTRY        r            t           70
HIGHWAY        r+25         t          120





------country road speed
--
-------highway speed
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