SOLUTION: a man traveld 108km and found dat he could have made the journey in 4 and a half hours had he traveled 2 miles an hours faster at what speed did he travel?

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Question 675647: a man traveld 108km and found dat he could have made the journey in 4 and a half hours had he traveled 2 miles an hours faster at what speed did he travel?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a man traveled 108km and found that he could have made the journey in 4 and a half hours had he traveled 2 miles an hours faster
at what speed did he travel?
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Original DATA:
distance = 108 km ; rate = r kph ; time = 108/r hrs
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Changed DATA:
distance = 108 km ; rate = (r+2) kph ; time = 108/(r+2) hrs
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Equation:
new time = 4 1/2 hrs
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108/(r+2) = 9/2
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9r + 18 = 216
9r = 198
r = 29 kph (his original speed)
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cheers,
Stan H.
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