A train which has 400 m long, is running 50 kmph. In what time will it cross a person moving at 14 kmph in same direction ?	Select.
A) 40 sec  B) 35 sec  C) 33 sec  D) 42 sec  E) 41 sec
Time taken to cross a moving person = length of train/ relative speed   Time taken = 400/((50-14) (5/18) = 400/ 36*(5/18) = 400/10= 
<gadget id="calculator">400/10</gadget>
<output>40</output>
40 sec   40 secnswer: 40 sec
<result>A</result>
A train which has 400 m long, is running 50 kmph. In what time will it cross a person moving at 14 kmph in same direction ?