A train 150 m long running at 72 km/h crosses a platform 250 m long. How long does it take?

A. 7.5 seconds

B. 18 seconds

C. 12.5 seconds

D. 20 seconds

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cgl Save WhatsApp Report

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Answer: D. 20 seconds

Answer: (D) 20 seconds

Distance = train + platform = 400 m. 72 km/h = 20 m/s. Time = 400 ÷ 20 = 20 seconds.

Trap: 7.5 s uses only the train's length.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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