How much time will a train of length 380 m moving at a speed of 72 kmph take to cross another train of length 540 m, moving at 36 kmph in the same direction?  Options:	A) 50	B) 99	C) 88	D) 92	E) 12
The distance to be covered = Sum of their lengths = 380 + 540= 
<gadget id="calculator">380 + 540</gadget>
<output>920</output>
920 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 = 920/10= 
<gadget id="calculator">920/10</gadget>
<output>92</output>
92 sec.   Answer:92
<result>D</result>
How much time will a train of length 380 m moving at a speed of 72 kmph take to cross another train of length 540 m, moving at 36 kmph in the same direction?