How long does a train 110 m long running at the speed of 54 km/hr takes to cross a bridge 132 m length? Select the correct option.
A) 12.9 sec B) 12.1 sec C) 17.9 sec D) 16.13 sec E) 14.9 sec
Speed = 54 * 5/18= 
<gadget id="calculator">54 * 5/18</gadget>
<output>15</output>
15 m/sec   Total distance covered= 110 + 132= 
<gadget id="calculator">110 + 132</gadget>
<output>242</output>
242 m.   Required time= 242/15 = 16.13 sec.   Answer: 16.13 sec
<result>D</result>
How long does a train 110 m long running at the speed of 54 km/hr takes to cross a bridge 132 m length?