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A 110 m long train is running at a speed of 60 km/h. How many seconds, does it take to cross an another train of length 170 m, which is standing on parallel track ?
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- 15.6 s
- 16.8 s
- 17.2 s
- 18 s
Correct Option: B
Speed = 60 km/h = 60 x (5/18) m/s = 50/3 m/s
Required time = (110 + 170) / (50/3) = (280 x 3)/50 = 16.8 s
