A jogger is running at 9 kmph alongside a railway track in 240 meters ahead of the engine of a 120 meters long train . The train is running at 45 kmph in the same direction. how much time does it take for the train to pass the jogger?

Options
1) 46
2) 36
3) 18
4) 22

• relative speed=45-9=36km/h=10m/s
  time=(240+120)/10=36seconds
• 9 years agoHelpfull: Yes(7) No(0)
• Ans : 2) 36 seconds
• 9 years agoHelpfull: Yes(0) No(0)
• Bhai wo to milne me 36sec lag rha hai, to train ko pass karne me usse zyada lgega na.
  To hamare hisab se ans 46sec hoga.
  
  
• 9 years agoHelpfull: Yes(0) No(5)
• first change into m/s , then subtract jogger speed from train speed ,add total distance
  3) 36
  
• 9 years agoHelpfull: Yes(0) No(0)
• total distance to be covered by train to pass jogger=240+120=360m
  Since,jogger and train runs in same direction so relative speed =(45-9)=36km/hr=36*(5/18)m/s=10m/s
  so time taken by train to pass jogger=360m/(10m/s)=36s
  Answer=36s
• 7 years agoHelpfull: Yes(0) No(0)