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A train of length 210 metres is running at a speed of 54 km/hr. In how much time it will completely cross a platform of 390 metres?

3417Medium DSSSB TGT Computer Science 0 replies 1 views
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A train of length 210 metres is running at a speed of 54 km/hr. In how much time it will completely cross a platform of 390 metres?

  • A50 seconds
  • B60 seconds
  • C40 seconds
  • D30 seconds
Correct answer: C

Explanation

Distance = 210 + 390 = 600 m. Speed = 54 km/hr = 15 m/s. Time = 600 ÷ 15 = 40 seconds.

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