What is the length of a bridge (in meters), which a train 148 meters long and travelling at 45 km/h can cross in 30 seconds? Select the correct option.
A) 211
B) 219
C) 227
D) 235
E) 243
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 - 148= 
<gadget id="calculator">375 - 148</gadget>
<output>227</output>
227 meters   The answer is 227.
<result>C</result>
What is the length of a bridge (in meters), which a train 148 meters long and travelling at 45 km/h can cross in 30 seconds?