The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is: Choose the correct choice.
A) 200 m B) 225 m C) 245 m D) 250 m E) 270 m
Let the length of the bridge:L   The equation now is L+130/12.5m/s(45km/hr or12.5m/s)=30   Solving, L =245m   ANSWER:245 m
<result>C</result>
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is: