A train has a length of 150 meters . it is passing a man who is moving at 2 km/hr in the same direction of the train, in 3 seconds. Find out the speed of the train.

Options
1) 182 km/hr
2) 180 km/hr
3) 152 km/hr
4) 169 km/hr

• speed=distance/time
  ----150/3=50
  ----50*18/5=180
  -----180+2=182
  
• 9 years agoHelpfull: Yes(10) No(3)
• speed=182 m/s
• 9 years agoHelpfull: Yes(1) No(2)
• let speed of train be v m/s
  speed of man= 2 * 5/18 =5/9
  find relative speed = v-5/9
  
  solve 150 = (v-5/9) * 3
• 9 years agoHelpfull: Yes(1) No(0)
• Ans :1)182 km/hr
  Sol: all parameter convert in KM and Hour
  (150/1000)/(Vr-2)=3/3600
  after soving ,we get
  Vr=182 km/hr
• 9 years agoHelpfull: Yes(0) No(1)
• speed of train=180km/hr
• 9 years agoHelpfull: Yes(0) No(1)
• l1+l2/s*18/5=s1-s2(s=crosssing time(second),s1=speed of train,s2=speed of main)
  150+0/3*18/5=S1-2
  S1=182km/h
• 9 years agoHelpfull: Yes(0) No(0)
• 182 km/hr
  same direction goes for difference of speed
  speed of train-speed of man=length of train/time taken to pass the man
• 8 years agoHelpfull: Yes(0) No(0)