Q. A train 180 m long is running at 54 km/h. How long will it take to cross a platform 120 m long?

  • (A) 18 sec
  • (B) 20 sec
  • (C) 22 sec
  • (D) 24 sec
✅ Correct Answer: (B) 20 sec
Explanation: Total distance = 180+120=300 m; Speed = 15 m/s → Time = 300/15 = 20 sec.

Published by Hriday ⭐ 575 Points at 29-Dec-2025 07:34 am in Math

Explanation by: Hriday
Total distance = 180+120=300 m; Speed = 15 m/s → Time = 300/15 = 20 sec.

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