<PRE><B>Question 521861</B>
An elf steals a sleeping dragon&#39;s gold treasure and runs off at 16 mph. 
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3 hours after the theft, the dragon wakes up and sets off after the elf at 20 mph. 
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How long will it take the dragon to capture his lunch?
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Elf DATA:
rate = 16 mph ; time = x hrs ; distance = 16x miles
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Dragon DATA:
rate = 20 mph ; time = x-3 hrs ; distance = 20(x-3) miles
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Equation:
elf distance = dragon distance
16x = 20(x-3)
16x = 20x - 60
4x = 60
x = 15 hrs (elf time)
x-3 = 12 hrs (dragon time)
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Cheers,
Stan H.
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Dragon dines on firey roasted elf in ________ hours.
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