The distance between two stations A and B is 300 km. A train leaves station A at the speed of 30 kmph. At the same time another train departs from station B at the speed of 45 kmph. What will be the distance of the point where both the trains meet from the point A?

• d = 300 km
  A's speed = 30 kmph
  B's speed = 45 kmph
  
  Time both trains meet ll be
  t=300/(30+45) = 300/75 = 4
  Both trains ll meet after 4 hrs
  
  Distance from the point A is
  d=t*s
  d=4*30 [Since distance from the point A is asked...]
  d = 120
  
  Ans : 120 km
  
• 10 years agoHelpfull: Yes(12) No(1)
• Ans 120
  Explaination
  relative speed =30+45=75
  time when they meet= dis/speed = 300/75 = 4h
  distance from A = 4*30=120
• 10 years agoHelpfull: Yes(7) No(1)
• A 30 B 45 per hr
  then 2nd hr 30+30 45+45
  then 3rd hr 60+30 90+45
  then 4th hour 90+30 135+45
  total A covers 120 km and B Covers 180
  so total distance is 300km so ans is 120km they meet
  
• 10 years agoHelpfull: Yes(4) No(2)
• distance between two stations= 300km
  let the two trains meet at a point xkm from A at time t.
  time for both at point x is t.
  so
  time req for A to reach at x is x/30
  time for b to reach x is x+300/45
  
  then
  x/30=x+300/45
  x= 600km
• 10 years agoHelpfull: Yes(1) No(2)
• 30:45=2:3
  distance from A=(300/5)*2=120
  where 5=2+3
• 7 years agoHelpfull: Yes(1) No(0)
• Train from Station A Covers 30km per hr,Train from Station B Covers 45km per hr
  So 1st hr Station A train ---Station B train
  
• 10 years agoHelpfull: Yes(0) No(1)