Civil Service Exam Reviewer · Word Problems · hard
A train 390 m long travels at 108 km/h. How long does it take to pass a lamp post?
- 3.61 seconds
- 27.67 seconds
- 13 seconds
- 46.8 seconds
Answer
C. 13 seconds
Solution
108 km/h = 30 m/s. Distance = 390 m. Time = 390 ÷ 30 = 13 s.
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