1.

A train 50m long passes over a bridge at a velocity of 30 km/m. If it takes 36 s to cross the bridge, the length of the bridge will be

Answer»

100 m
200m
250m
300m

Solution :Let L be the length of the BRIDGE.
`:. (50+l)/(36)=30xx(1000)/(3600)`
or""50+l=300
or"" l=250m


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