Multiple choice

If a 250 m long train crosses a platform of the same length as that of the train in 25 sec, then the speed of the train is – एक 250 मीटर लंबी ट्रेन समान लम्बाई के प्लेटफॉर्म को 25 सेकंड में पार कर जाती है तो ट्रेन की गति क्या है?

  1. 72 km/h 72 किमी./घं.

  2. 75 km/h 75 किमी./घं.

  3. 78 km/h 78 किमी./घं.

  4. 81 km/h 81 किमी./घं.

  5. None of these इनमें से कोई नहीं
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A Correct answer
Explanation

Total distance covered = length of train + length of platform = 250 + 250 = 500 m. Time taken = 25 seconds. Speed in m/s = 500/25 = 20 m/s. Convert to km/h: 20 × 18/5 = 72 km/h. The train's speed is 72 km/h.

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