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A train is 130 m long it travels at a speed of 45 km/hour. It crosses a bridge in 30 seconds. The length of bridge is?

  1. 245m
  2. 230m
  3. 140m
  4. none of these
A train is 130 m long it travels at a speed of 45 km/hour. It crosses a bridge in 30 seconds. The length of bridge is?

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