A train is 360 meter long is running at a speed of 30 km/hour. In what time will it pass a bridge of 140 meter length?  Choose the most appropriate option:
A) 87
B) 69
C) 60
D) 72
E) 21
Speed = 30 Km/hr = 30*(5/18) m/sec = 25/3 m/sec   Total distance = 360+140= 
<gadget id="calculator">360+140</gadget>
<output>500</output>
500 meter   Time= Distance/speed   = 500 * (3/25)= 
<gadget id="calculator">500 * (3/25)</gadget>
<output>60</output>
60 seconds   Answer: 60
<result>C</result>
A train is 360 meter long is running at a speed of 30 km/hour. In what time will it pass a bridge of 140 meter length?