How much time will a train of length 250 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?
Choose the correct choice from the following choices:
A) 55
B) 99
C) 88
D) 76
E) 12
The distance to be covered = Sum of their lengths = 250 + 300= 
<gadget id="calculator">250 + 300</gadget>
<output>550</output>
550 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 = 550/10= 
<gadget id="calculator">550/10</gadget>
<output>55</output>
55 sec.   55nswer:55
<result>A</result>
How much time will a train of length 250 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?