How long does a train 200 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?
Choose the correct choice from the following: A) 82.1 sec B) 12.1 sec C) 16.1 sec D) 13.1 sec E) 16.6 sec
Speed = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20 m/sec   Total distance covered= 200 + 132= 
<gadget id="calculator">200 + 132</gadget>
<output>332</output>
332 m.   Required time= 332/20= 
<gadget id="calculator">332/20</gadget>
<output>83/5 = around 16.6</output>
16.6 sec.   Answer:16.6 sec
<result>E</result>
How long does a train 200 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?