Question

train length is 100mtr, bridge length is 400meter, train cross the bridge in 2min. what is the speed of the train?

Answer 1

Total length is 100+400=500m which is also our distance
Time = 2min =120s
Speed =distance /time
= 500/120
= 4.16 m/s

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Answer 2

train speed is 4.16 meter per second. total travel 500 meter and time is 120 seconds