πŸ“Š Math
Q. A train 200 m long crosses a platform in 40 seconds. If its speed is 54 km/h, what is the platform length?
  • (A) 350 m
  • (B) 400 m
  • (C) 450 m
  • (D) 500 m
πŸ’¬ Discuss
βœ… Correct Answer: (B) 400 m

Explanation: Speed = 15 m/s → Distance = 15×40 = 600 m → Platform = 600−200 = 400 m.

πŸ“Š Math
Q. A train crosses a standing man in 5 seconds at 72 km/h. What is the length of the train?
  • (A) 80 m
  • (B) 90 m
  • (C) 100 m
  • (D) 110 m
πŸ’¬ Discuss
βœ… Correct Answer: (C) 100 m

Explanation: Speed = 20 m/s → Length = 20×5 = 100 m.

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