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RRB NTPC 2021 · Question 67 of 131

A train that is 110 m in length is running at 90 km/h. How much time will the train take to cross a bridge that is 180 m in length?

  1. A11.6 sCorrect
  2. B9.6 s
  3. C10.6 s
  4. D7.6 s

Answer: A. 11.6 s

Explanation

Length of train =110m Length of bridge =180m. Speed of train =90km/h=90×5/18=25m/sec. Time = (total distance)/speed = (110+180)/25 =290/25 =11.6 sec.

Source: RRB NTPC 2021 CBT 1 Previous Year Paper (3 Feb) — ixambee compilation with answer key · reliable-secondary

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