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A train of length 180 m approaches a tunnel of length 620 m. How long will it take the train to pass completely through the tunnel at a speed of 54 km/h?
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3 votes
A train of length 180 m approaches a tunnel of length 620 m.

How long will it take the train to pass completely through the
tunnel at a speed of 54 km/h?

User Rimonmostafiz
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1 Answer

3 votes
After coming out of the tunnel it has to travel it's own length to pass through the tunnel completely. So the train of length 180 metres takes 0.889 seconds to pass through a tunnel of length 680 metres completely.
User Danna
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