A train travelling at 25 km/hr leaves Delhi at 9 AM and another train travelling at 35 km/hr starts at 2 PM in the same direction. How many km form Delhi will they be together?
A. 440 km
B. 400 km
C. 437 ½ km
D. 400 ½ km

• C. 437 ½ km
  Explanation:
  Distance = (S1*S2)/[(S1-S2)t] Difference in time = 2Pm – 9AM = 5 hrs
  Distance = (25*35)/[(35-25)*5] = 437 ½ km
• 9 years agoHelpfull: Yes(4) No(5)
• C. 437 ½ km
  Explanation:second train is starting 5 hrs late so when it would be starting, first train would have already covered 25*5 km So let t be the time in which second train reaches first train be t
  first Train time will be=t+5
  now distance is same for both train so
  35*t=25(t+5)
  t=12.5
  so distance is=437 ½ km
  
  
  
• 9 years agoHelpfull: Yes(2) No(0)