3) Two trains travel in the same direction with 56kmph speed. The fast train crosses a person standing, in 78.9sec. Find the length of the fast train.

• answer : 1.227 kms
  
  Solution : length = speed * time
  = 56 * (78.9/3600).....(since time is given in secs,it has to be converted into hours)
  = 1.227 kms
• 9 years agoHelpfull: Yes(8) No(0)
• Answer: 1222.95 meter
  
  Speed = 56 kmph that means it will be 15.55 m/s ( by multiplying 5/18 in 56 to convert it in m/s)
  Time = 78.9 s
  Distance = Speed * Time
  Length of Train = 15.55 * 78.9 =1222.95 meter
  
  So answer will be 1222.95 Meter Or 1.223 Km.
• 9 years agoHelpfull: Yes(6) No(0)
• lenghth of train= (78.9*58)/60*60 = 1.22km
• 9 years agoHelpfull: Yes(1) No(2)
• length=speed*time
  speed=56kmph=56*(5/18)=15.556mps
  length=15.5556*78.9=1227.33 meters=1.227 kms
• 6 years agoHelpfull: Yes(1) No(0)
• ans :3
  =56 * (78.9/3600).....(since time is given in secs,it has to be converted into hours)
  = 1.227 km/s
• 9 years agoHelpfull: Yes(0) No(1)
• Answer can be 1.227 kms or anything because speed of faster train is not specified.
• 8 years agoHelpfull: Yes(0) No(0)