180 മീറ്റർ നീളമുള്ള ഒരു ട്രെയിൻ 20 മീറ്റർ/സെക്കൻഡ് വേഗതയിൽ നീങ്ങുന്നു. ഒരേ ദിശയിൽ 10 മീറ്റർ/ സെക്കൻ്റ് വേഗതയിൽ സഞ്ചരിക്കുന്ന ഒരു മനുഷ്യനെ ഓവർ-ടേക്ക് ചെയ്യുന്നു. ട്രെയിൻ മനുഷ്യനെ കടന്നുപോകുന്നതിന് എടുക്കുന്ന സമയം എത്ര?
A6 sec
B18 sec
C9 sec
D27 sec
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