A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?  Answers:
A) 40 sec
B) 50 sec
C) 44 sec
D) 49 sec
E) 60 sec
Speed = 45 * 5/18 = 25/2 m/sec   Total distance covered = 360 + 140= 
<gadget id="calculator">360 + 140</gadget>
<output>500</output>
500 m   Required time= 500 * 2/25= 
<gadget id="calculator">500 * 2/25</gadget>
<output>40</output>
40 sec   40 secnswer:40 sec
<result>A</result>
A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?