28. The dog and here are running, dog crosses the roads, rivers and different. Here start running after 2 hours of dog running, dog runs 30kmph in 6 hours then what is the average speed of here?

• speed of dog is 30 km/hr
  time taken by dog is 6 hrs
  distance=speed*time=30*6=180 km
  so, speed of hare after 2 hrs =distance/time
  therefore, speed=180/4=45 km/hr
• 10 years agoHelpfull: Yes(29) No(3)
• average speed =distance/time
  so total distance 30*6
  here start after 2 hours so time =4hours
  average speed=30*6/4
• 10 years agoHelpfull: Yes(10) No(0)
• avrerage speed = total distance/total time
  avg speed of hare= (30*6)/4
  = 45
• 10 years agoHelpfull: Yes(2) No(0)
• ans is 45
  speed of dog is 30 km/hr
  time taken by dog is 6 hrs
  distance=speed*time=30*6=180 km
  so, speed of hare after 2 hrs =distance/time
  therefore, speed=180/4=45 km/hr
  
• 9 years agoHelpfull: Yes(0) No(0)
• Speed==30*6/4
• 9 years agoHelpfull: Yes(0) No(0)
• Speed==30*6/4
• 9 years agoHelpfull: Yes(0) No(0)
• Average speed=6*30/6+2 kmph=45 kmph
• 9 years agoHelpfull: Yes(0) No(0)