1. A 145-meter long train passes at 54 kilometers and crosses a bridge in 29 seconds. If so, find the length of the bridge. (In meters)





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  • By: anil on 05 May 2019 01.13 am
    Speed of train = 54 kmph = $$54 imesfrac{5}{18}=15$$ m/s Let length of bridge = $$x$$ m Using, speed = distance/time => $$15=frac{145+x}{29}$$ => $$145+x=29 imes15=435$$ => $$x=435-145=290$$ m => Ans - (D)
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