SOLUTION: a train traveling at 30 kilometer per hour takes 5 seconds to enter a tunnel. How many kilometers long is the train? Express your answer as a proper fraction.

Question 851074: a train traveling at 30 kilometer per hour takes 5 seconds to enter a tunnel. How many kilometers long is the train? Express your answer as a proper fraction.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The posterior of the train moves the train-length in that 5 seconds. That is what to find.

kilometers
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