1. A train of length 135 m travels at a speed of 54 kmph crosses a bridge in 27 seconds. Find the length of the bridge. (in m)





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  • By: anil on 05 May 2019 01.12 am
    Speed of train = 54 kmph = $$54 imesfrac{5}{18}=15$$ m/s Let length of bridge = $$x$$ m Using, speed = distance/time => $$15=frac{135+x}{27}$$ => $$135+x=27 imes15=405$$ => $$x=405-135=270$$ m => Ans - (A)
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