A train crosses a 150m long platform in 20 seconds. If the train’s speed is 54 km/h, what is the length of the train?
A100m
B150m
C200m
D250m
Explanation
Speed = 54 * 5/18 = 15 m/s. Total distance = Speed * Time = 15 * 20 = 300m. Train length = 300 – 150 = 150m.
Exam Relevance
- Topic: Speed, Time & Distance
- Subtopic: Trains
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