CSAT (Aptitude)·Prelims Questions

Trains and Platforms — Prelims Questions

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Version 1Updated 5 Mar 2026

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Q1medium

A train 180 meters long is running at a speed of 72 km/hr. It crosses a platform in 15 seconds. What is the length of the platform?

Q2medium

Two trains of lengths 150m and 200m are moving in opposite directions at speeds of 54 km/hr and 72 km/hr respectively. How much time will they take to completely cross each other?

Q3hard

A train crosses a pole in 12 seconds and crosses a 264-meter platform in 20 seconds. What is the speed of the train?

Q4medium

A goods train 280m long is running at 72 km/hr. It overtakes a passenger train 320m long running at 36 km/hr in the same direction. How long does it take to completely overtake?

Q5medium

A train traveling at 90 km/hr takes 36 seconds to cross a bridge. If the same train takes 18 seconds to cross a signal post, what is the length of the bridge?