Q. How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?

Option
A. 25
B. 30
C. 40
D. 45

• option B 30 sec
  Relative speed of the train=63-3=60kmph=60*5/18=50/3 m/sec
  t=500*3/50=30sec
  
• 12 years agoHelpfull: Yes(6) No(0)
• the man and train in same direction so ,the total speed=63-3=60
  total distance/(60*(5/18))=30sec
• 10 years agoHelpfull: Yes(0) No(0)