How long does a train 110 meters long running at the speed of 72 km/hour take to cross a bridge 132 meters in length ?
Choose the most appropriate option:  A) 12.1 sec  B) 10 sec  C) 11 sec  D) 13 sec  E) 13.2 sec
Speed = 72 km/hour = 72*(5/18) m/sec   = 20 m/sec   Total distance = 110+132 = 142 m   Time = D/S   = 242/20= 
<gadget id="calculator">242/20</gadget>
<output>121/10 = around 12.1</output>
12.1 seconds   12.1 secNSWER 12.1 sec
<result>A</result>
How long does a train 110 meters long running at the speed of 72 km/hour take to cross a bridge 132 meters in length ?