Civil Service Exam Reviewer · Word Problems · hard
A train 180 m long travels at 90 km/h. How long does it take to pass a lamp post?
- 2 seconds
- 20 seconds
- 25.92 seconds
- 7.2 seconds
Answer
D. 7.2 seconds
Solution
90 km/h = 25 m/s. Distance = 180 m. Time = 180 ÷ 25 = 7.2 s.
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