A train 180 m long crosses a pole in 9 seconds. How long will it take to cross a platform 270 m long?

A. 18 seconds

B. 22.5 seconds

C. 27 seconds

D. 13.5 seconds

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

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Best answer

Answer: B. 22.5 seconds

Answer: (B) 22.5 seconds

Speed \(= \frac{180}{9} = 20\) m/s. To cross the platform it covers \(180 + 270 = 450\) m: \(\frac{450}{20} = 22.5\) s.

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

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