A train is 360 meter long is running at a speed of 50 km/hour. In what time will it pass a bridge of 140 meter length?	Options.
A) 87
B) 69
C) 36
D) 72
E) 21
Speed = 50 Km/hr = 50*(5/18) m/sec = 125/9 m/sec   Total distance = 360+140= 
<gadget id="calculator">360+140</gadget>
<output>500</output>
500 meter   Time= Distance/speed   = 500 * (9/125)= 
<gadget id="calculator">500 * (9/125)</gadget>
<output>36</output>
36 seconds   Answer: 36
<result>C</result>
A train is 360 meter long is running at a speed of 50 km/hour. In what time will it pass a bridge of 140 meter length?