Posted by **Sam** on Thursday, September 29, 2011 at 9:07pm.

You are driving home from college steadily at 95km/hour for 130km. It begins to rain and you slow to 65km/hour. You arrive home after driving 3 hours and 20 minutes. How far is your hometown from college?

- math -
**Steve**, Friday, September 30, 2011 at 5:36am
Work with the time of each section, since you know the total time.

Time at 95kph = 130/95 h

Time at 65 kph = t

130/95 + t = 10/3

t = 1.965 h

So, total distance is 130km + 65*1.965 = 130+127.7 = 257.7km

- math -
**458**, Monday, October 3, 2011 at 6:38pm
drt

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