A train 560 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long? Pick one:
A) 40
B) 56
C) 41
D) 42
E) 34
Speed = 45 * 5/18 = 25/2 m/sec   Total distance covered = 560 + 140= 
<gadget id="calculator">560 + 140</gadget>
<output>700</output>
700 m   Required time= 700 * 2/25 = 40 sec   Answer: Option 56
<result>B</result>
A train 560 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?