110 മീറ്റർ നീളമുള്ള ഒരു ട്രെയിൻ മണിക്കൂറിൽ 90 കിലോമീറ്റർ വേഗതയിൽ ഓടുന്നു. ട്രെയിൻ പോകുന്ന ദിശയുടെ എതിർ ദിശയിൽ മണിക്കൂറിൽ 9 കിലോമീറ്റർ വേഗതയിൽ ഓടുന്ന ഒരു ആൺകുട്ടിയെ അത് ഏത് സമയത്താണ് കടന്നുപോകുക?
A6 sec
B8 sec
C5 sec
D4 sec
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