Two trains X and Y are moving in opposite direction, one from station A to station B and the other from station B to station A. The train X reaches its destination i.e. station A in 14 hours and the train Y reaches its destination i.e. station B in 20 hours after the trains meet. If the speed of train X is 20 km per hour, then what is the speed of the train Y ?

• If x,y are speed of trains X and Y and they meet at a distance p from B and distance q from A, then
  p/x= q/y
  
  and
  p/y = 20; q/x= 14
  and x= 20 kmph
  
  solving these eqns and putting values , we get
  y = 16.73 kmph
• 12 years agoHelpfull: Yes(7) No(9)
• answer comes out to be sqrt(280)... create a diagram and solve...Garima's explanation is correct
• 12 years agoHelpfull: Yes(0) No(1)
• ans sqrt(280)
• 10 years agoHelpfull: Yes(0) No(0)
• 35km per hour
• 4 years agoHelpfull: Yes(0) No(0)