Civil Service Exam Reviewer · Word Problems · hard
A train 100 m long travels at 90 km/h. How long does it take to completely cross a bridge 360 m long?
- 14.4 seconds
- 4 seconds
- 18.4 seconds
- 66.24 seconds
Answer
C. 18.4 seconds
Solution
90 km/h = 25 m/s. Distance = 100 + 360 = 460 m. Time = 460 ÷ 25 = 18.4 s.
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