What is the length of a bridge (in meters), which a train 166 meters long and travelling at 45 km/h can cross in 40 seconds?  Choose the most appropriate option.
A) 310
B) 318
C) 326
D) 334
E) 342
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 - 166= 
<gadget id="calculator">500 - 166</gadget>
<output>334</output>
334 meters   The answer is 334.
<result>D</result>
What is the length of a bridge (in meters), which a train 166 meters long and travelling at 45 km/h can cross in 40 seconds?