Problems on Trains · Question 9 · Medium
A train crosses a pole in 15 seconds and a 100 m long platform in 25 seconds. What is the length of the train?
- 250 m
- 120 m
- 150 m
- 100 m
Answer and explanation
Answer: C. 150 m
Explanation: Speed is the same: L/15 = (L + 100)/25, so 25L = 15L + 1500, giving L = 150 m (speed 10 m/s).
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