Problems on Trains · Question 21 · Medium
Problems on Trains question 21
Two trains run in the same direction at 90 km/h and 54 km/h. The faster train passes a man sitting in the slower train in 20 seconds. What is the length of the faster train?
- 200 m
- 500 m
- 300 m
- 400 m
Answer and explanation
Answer: A. 200 m
Explanation: Relative speed = 90 − 54 = 36 km/h = 10 m/s. The faster train's length = 10 × 20 = 200 m.
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