SSC CHSL Time, Speed and Distance question with solution
Time, Speed and DistanceModerate
A train 250 m long is running at 90 km/h. How much time will it take to cross a pole?
- (A)20 seconds
- (B)3 seconds
- (C)7 seconds
- (D)10 seconds
Correct answer: (D) 10 seconds
Convert the speed to metres per second: 90 × 5/18 = 25 m/s. To cross a pole the train covers its own length, so time = 250 ÷ 25 = 10 seconds.
Shortcut: km/h × 5/18 = m/s; time = length ÷ speed.
About this question
- Subject
- Quantitative Aptitude
- Topic
- Time, Speed and Distance
- Exam
- SSC CHSL
- Attempts on SSC Rank
- Not attempted yet
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Last reviewed on 5 Oct 2026. Spotted a mistake? See our correction policy.