Two trains 140 m and 160 m long run on parallel tracks in the same direction at 60 km/h and 42 km/h. How long will the faster train take to pass the slower one completely?

A. 30 seconds

B. 72 seconds

C. 45 seconds

D. 60 seconds

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

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Answer: D. 60 seconds

Answer: (D) 60 seconds

Same direction: relative speed = 60 − 42 = 18 km/h = 5 m/s. Distance = 140 + 160 = 300 m.

Time = 300 ÷ 5 = 60 seconds.

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

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