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Problem on Trains

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  1. Two trains are running 40 km/h and 20 km/h respectively, in the same directions. The fast train completely passes a man sitting in the slow train in 5 s. The length of the fast a train is ?
    1. 232/9 m
    2. 27 m
    3. 277/9 m
    4. 23 m
Correct Option: C

The length of the fast train = Relative speed x Time
= (40 - 20) x (5/18) x 5 = 277/9 m


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