What is the length of a bridge (in meters), which a train 156 meters long and travelling at 45 km/h can cross in 40 seconds?	Options.
A) 308 B) 320 C) 332 D) 344 E) 356
speed = 45 km/h = 45000 m / 3600 s = 25/2 m/s   In 40 seconds, the train can travel  25/2 * 40= 
<gadget id="calculator"> 25/2 * 40</gadget>
<output>500</output>
500 meters   500= length of train + length of bridge   length of bridge = 500 - 156= 
<gadget id="calculator">500 - 156</gadget>
<output>344</output>
344 meters   The answer is 344.
<result>D</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 40 seconds?