1. A train 150 metre long takes 20 seconds to cross a platform 450 metre long. The speed of the train in, km per hour, is:





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  • By: anil on 05 May 2019 02.28 am
    Total distance = $$150+450=600$$ m Using, speed = distance/time = $$frac{600}{20}=30$$ m/s $$ herefore$$ Speed = $$30 imesfrac{18}{5}=108$$ km/hr => Ans - (A)
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