A train 110 m long passes a man,running at 6 kmph in the direction opposite to that of the train,in 6 seconds.The speed of the train is
a)54 kmph b)60 kmph c)66 kmph d)72 kmph

• Ans is 60 km/h
  speed of train relative to man: 110/6 * 18/5 km/hr
  = 66 km/hr
  let speed of train= x
  therefore x+6 = 66
  x= 66-6
  x=60 km/hr Ans
• 11 years agoHelpfull: Yes(0) No(0)
• answer is b) 60 kmph
  solution is:-
  speed of train relative to man i,e. combined speed of train and man=110/6 * 18/5=66 kmph
  let speed of train individually= x kmph
  and speed of man individually= 6kmph
  so. x+6=66
  so, x=60 kmph
  
  
  or in other way,
  combined speed of train and man=110/6 * 18/5=66 kmph
  speed of man=6 kmph
  therefore, speed of train=66-6=60 kmph
• 6 years agoHelpfull: Yes(0) No(0)