A train 360 m long is running at a speed of 36 km/hr. In what time will it pass a bridge 140 m long?  Choose the correct choice.
A) 50 sec
B) 29 sec
C) 26 sec
D) 27 sec
E) 34 sec
Speed = 36 * 5/18= 
<gadget id="calculator">36 * 5/18</gadget>
<output>10</output>
10 m/sec   Total distance covered= 360 + 140= 
<gadget id="calculator">360 + 140</gadget>
<output>500</output>
500 m   Required time= 500 * 1/10= 
<gadget id="calculator">500 * 1/10</gadget>
<output>50</output>
50 sec   50 secnswer: 50 sec
<result>A</result>
A train 360 m long is running at a speed of 36 km/hr. In what time will it pass a bridge 140 m long?