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Mathematics, 21.07.2020 20:01, shey89
A train traveling at 100 km an hour takes 3 seconds to enter a tunnel and an additional thirty seconds to pass completely through it. Find the length, in kilometers, of the train. Express your answer as a common fraction
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Answers: 3
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A train traveling at 100 km an hour takes 3 seconds to enter a tunnel and an additional thirty secon...
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