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A train, 110 m long, is running at a speed of 60 km/hr. How many seconds does it take to cross another train, 170 m long, standing on parallel track ?

August 30, 2016 Quiz Questions

A train, 110 m long, is running at a speed of 60 km/hr. How many seconds does it take to cross another train, 170 m long, standing on parallel track ?
[A]15.6 sec
[B]16.8 sec
[C]17.2 sec
[D]18 sec

16.8 sec
Speed\ of\ train = \frac{Sum\ of\ length\ of\ both\ trains}{Time\ Taken}
=> \frac{60\times 5}{18} = \frac{110+170}{t} = \frac{280}{t}
=> t = \frac{280\times 18}{60\times 5} = 16.8\ seconds
Hence option [B] is correct answer.

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