What is the length of a bridge (in meters), which a train 156 meters long and travelling at 45 km/h can cross in 30 seconds?  Choose the correct choice from the following answers.
A) 203
B) 211
C) 219
D) 227
E) 235
speed = 45 km/h = 45000 m / 3600 s = 25/2 m/s   In 30 seconds, the train can travel  25/2 * 30= 
<gadget id="calculator"> 25/2 * 30</gadget>
<output>375</output>
375 meters   375= length of train + length of bridge   length of bridge = 375 - 156= 
<gadget id="calculator">375 - 156</gadget>
<output>219</output>
219 meters   The answer is 219.
<result>C</result>
What is the length of a bridge (in meters), which a train 156 meters long and travelling at 45 km/h can cross in 30 seconds?