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? Select:  A) 40  B) 99  C) 88  D) 66  E) 21
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.40nswer: 40
<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?