A train passes over a 400 m long bridge. If the speed of the train is 30 m/s and the train takes 20 s to cross the bridge, then the length of the train is
Answer: 200 m
Explanation
Given:
- Speed of train = 30 m/s
- Time to cross bridge = 20 s
- Length of bridge = 400 m
Total distance covered = Speed × Time = 30 × 20 = 600 m
So, length of train = 600 - 400 = 200 m
Correct answer: 200 m
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