Speed of trains A and B are 29 & 56 km/hr travelling in the same direction. Man in slower train passes in 16 min.
Find the length of the train.?
Ans 120m

• 120 m is length if faster train passes man in slower train in 16 secs and not in 16 mins.
• 13 years agoHelpfull: Yes(19) No(2)
• let length of 2 trains = 2x
  Relative speed= 56-29 = 27 km/hr
  = (27*5)/18 m/sec
  = 15/2 m/sec
  so, 2x/16=15/2
  2x=120
  
  
• 10 years agoHelpfull: Yes(5) No(0)
• A=29KMPH B=56KMPH
  when the trains are going in the same direction then their relative speed will be (A-B)KMPH
  SPEED=(56-29)=27KMPH
  THEN we will convert it into m/sec so
  27x(5/18)=15/2M/SEC
  SPEED=LENGTH OF THE TRAIN/TIME TAKEN
  15/2M/SEC=L/16SEC
  L=(15/2)X16=120 METER
  
• 10 years agoHelpfull: Yes(4) No(3)
• If its 16 secs ans is 120m if its 16 min ans would be 7200m (longest train in world :P)
• 8 years agoHelpfull: Yes(2) No(0)
• i think it is 16sec not 16min,then only we can get 120m as the answer
  
• 9 years agoHelpfull: Yes(1) No(0)
• relative speed (same direction)= 56-29= 27 kmph
  two train(length unknown)
  distance/time=speed
  2x/16=27*5/18
  x=120 mps
• 10 years agoHelpfull: Yes(0) No(3)