A train which has 430 m long, is running 45 kmph. In what time will it cross a person moving at 9 kmph in same direction ? Choices:
A) 56 sec
B) 43 sec
C) 36 sec
D) 29 sec.
E) 19 sec.
Time taken to cross a moving person = length of train/ relative speed   Time taken = 430/((45-9) (5/18)   = 430/ 36*(5/18)   = 430/10= 
<gadget id="calculator">430/10</gadget>
<output>43</output>
43 sec   ANSWER:43 sec
<result>B</result>
A train which has 430 m long, is running 45 kmph. In what time will it cross a person moving at 9 kmph in same direction ?