SOLUTION: How long would it take a half-mile long train going two miles a minute to go through a four-miles tunnel?

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Question 881813: How long would it take a half-mile long train going two miles a minute to go through a four-miles tunnel?
Answer by lwsshak3(11628) About Me  (Show Source):
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How long would it take a half-mile long train going two miles a minute to go through a four-miles tunnel?
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effective distance train travels=4.5 miles
travel time=distance/rate of speed
travel time=4.5/2=2.25
How long would it take for the train to go through a four-mile tunnel? 2.25 min