How much time will a train of length 200 m moving at a speed of 72 kmph take to cross another train of length 300 m, moving at 36 kmph in the same direction?	Pick:	A) 50 sec	B) 26 sec	C) 80 sec	D) 82 sec	E) 81 sec
The distance to be covered = Sum of their lengths = 200 + 300= 
<gadget id="calculator">200 + 300</gadget>
<output>500</output>
500 m.   Relative speed= 72 -36= 
<gadget id="calculator">72 -36</gadget>
<output>36</output>
36 kmph= 36 * 5/18= 
<gadget id="calculator">36 * 5/18</gadget>
<output>10</output>
10 mps.   Time required= d/s = 500/10= 
<gadget id="calculator">500/10</gadget>
<output>50</output>
50 sec.   50 secnswer: 50 sec
<result>A</result>
How much time will a train of length 200 m moving at a speed of 72 kmph take to cross another train of length 300 m, moving at 36 kmph in the same direction?