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A train is 130 m long and cross the tunnel in 21 seconds at the speed of 90 km/h. What is the length of tunnel?
  1. 395 m
  2. 225 m
  3. 325 m
  4. None of these
Explanation

Speed = 90 km/h = 25 m/s

Distance = 25 × 21 = 525 m

Length of tunnel = 525 - 130 = 395 m


Last verified on 22-01-2026

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