A train 440 meters long is running with a speed of 50 kmph. The time taken by it to cross a tunnel 180 meters long is?
Choose the correct choice from the following options: A) 40.33 sec B) 41.33 sec C) 42.33 sec D) 40 sec E) 44.64 sec
D = 440 + 180= 
<gadget id="calculator">440 + 180</gadget>
<output>620</output>
620   S= 50 * 5/18 = 13.88889 mps   T = 620/13.88889 = 44.64   44.64 sec
<result>E</result>
A train 440 meters long is running with a speed of 50 kmph. The time taken by it to cross a tunnel 180 meters long is?