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Q: Train A running at a speed of 63 km/h takes 21 seconds to completely cross train B running at 45 km/h in the opposite direction. The length of train B is 2.5 times the length of train A. Train B crosses a bridge completely in 76 seconds. The length of the bridge (in m) is :
  • A. 480
  • B. 880
  • C. 660
  • D. 500
Correct Answer: Option D -
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Explanations:

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