Problems on trains

Quantitative Aptitude ( CCS)

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A train 120m long passes an electric pole in 6s.How long will it take to cross a bridge of 240m long ?

18s

16m

13m

15s

Explanation:

Speed = 120/6 = 20m/s
Time taken to cross the bridge = (120+240)/20
= 360/20
= 18s

By: Sandeep Dubey

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