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A 400 m long train cross a 200 m long platform in 30 second, the train speed is:

Option 1)

80 km/hr

Option 2)

90 km/hr

Option 3)

72 km/hr

Option 4)

54 km/hr

Option 5)

36 km/hr

Answers (1)

best_answer

Total Distance = 400 + 200 => 600m

Time = 30 seconds

Speed = 600/30 => 20 m/s or 20 x 18/5 => 72 K/h

Posted by

rishi.raj

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