<PRE><B>Question 205065</B>
 Boating on the lake The Clarke family went sailing on a lake. their boat averaged 6 kilometer per hour. the Rourke family took their outboard runabout for a trip on the lake for the same amount of time. their boat averaged 14 kilometers per hour. the Rourke traveled 20 kilometers farther than the Clarke family. how many hours did each family spend on their boat trip? 
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You only need to know that distance = rate*time
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Clarke DATA:
rate 6 kph ; time = x hrs ; distance = rt = 6x km

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Rourke DATA:
rate = 14 kph ; time = x hrs ; distance = 14x km
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Equation:
Rourke distance - Clarke distance = 20 km
14x - 6x = 20
8x = 20
x = 3 1/3 hours
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Cheers,
Stan H.
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