Two same length train are moving with speed 24 kmph and 18 kmph towards each other.if they crosses each other in 18 sec .then find the length of the train?

• lenth is same
  so relative speed =24+18=42kmph
  time is given as 18sec = 18/3600 h
  so the length= (18/3600)*42/2 = 105mt
• 12 years agoHelpfull: Yes(24) No(9)
• 24+18=42
  42*5/18=35/3
  35/3*18=210
  ans=210m
• 12 years agoHelpfull: Yes(19) No(10)
• opposite direction=24+18=42km/hr
  speed=km/hr to m/s=42*(5/18)
  length=speed*time
  length42*(5/18) * 18
  length=210m
• 8 years agoHelpfull: Yes(6) No(2)
• SPEED=DISTANCE/TIME
  AS THEY ARE MOVING TOWARDS EACH OTHER SPEEDS SHOULD BE ADDDED
  (24+18)*5/18*18=LENGTH=DISTANCE
  ANS: 210
• 9 years agoHelpfull: Yes(5) No(1)
• lenth is same
  relative sped is =24+18=42kmph
  convert kmph into mps so =(42*5)/18
  distance =speed*time=(42*5*18)/18=210m
  length of each train=105m
• 8 years agoHelpfull: Yes(5) No(0)
• lenth is same
  so relative speed =24-18=6kmph=30/18 kmph
  tyme is given as 18sec
  so the length wl b=3=/18*18=30m
  
• 13 years agoHelpfull: Yes(3) No(25)
• hello swapnil if u dont mine can u explain clearly.
• 11 years agoHelpfull: Yes(2) No(2)
• Let the length of train be l so both trains are having same length so total length is 2l
  Since both the trains are coming towards each other so relative speed is 24+18=42 kmph
  time=18sec therefore 18/(60*60) (in order to convert into hours)
  2l/42=18/(3600)
  l=21/200
  l=.105km=105m
• 8 years agoHelpfull: Yes(2) No(1)
• how can towards each other be +?
• 7 years agoHelpfull: Yes(0) No(0)