A bridg is 500m long .A 100m long train crosses the bridge at a Speed of 30m/s. find the time taken by train to cross it.
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length of the train =100m
length of the platform=500m
total distance covered =100m+500m=600m
time taken to cross the bridge =600/30m=20m/s
so it takes 20 seconds to cross the bridge
length of the platform=500m
total distance covered =100m+500m=600m
time taken to cross the bridge =600/30m=20m/s
so it takes 20 seconds to cross the bridge
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