A train runs at a speed of 80km/hr. If the
length of the train is 400 m, how long will it
take for it to cross an 400m bridge?
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Step-by-step explanation:
km into m: 80x5/18=200/9
time = 400+400/200/9
= 800/200/9
=36 seconds
Hemabanta:
Thanks
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