SOLUTION: How much longer would it take lava flowing at 1 kilometer per hour to travel 8 kilometers than lava flowing at 10 kilometers per hour?

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Question 887934: How much longer would it take lava flowing at 1 kilometer per hour to travel 8 kilometers than lava flowing at 10 kilometers per hour?
Answer by lwsshak3(11628) About Me  (Show Source):
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How much longer would it take lava flowing at 1 kilometer per hour to travel 8 kilometers than lava flowing at 10 kilometers per hour?
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Travel time=distance/speed
at 1 km/hr
travel time=8/1=8 hrs
..
at 10 km/hr
travel time=8/10=0.8 hr
..
1 km flow takes 7.2 hrs longer than 10 km flow