. A horse starts to chase a dog that has left the stable two hours earlier. The horse runs at an average speed of 2km/hr. It crosses a 10-metre road, two small ponds 3 metres deep, and finally runs along two small streets of 200 metres long. After traveling 6 hrs, 2hrs after sunset, it catches the dog. Compute the speed of the dog in Km/hr?

(a) 20 (b) 22 (c) 16.5 (d) 18.5

• None of these options is correct.
  The horse runs at an average speed of 2km/hr.
  
  Distance travelled by horse in 6 hrs = distance travelled by dog in 8 hrs = 2*6=12 kms
  Speed of dog = 2*6/8= 1.5 km/hr
• 14 years agoHelpfull: Yes(17) No(2)
• horse
  time taken= 6hrs
  speed=22km/h
  dist= 22*6=132km
  
  dog
  time=6+2=8hr
  dist=132 km
  speed=dist/time=132/8=16.5km/hr
  (c) 16.5km/hr
• 14 years agoHelpfull: Yes(15) No(6)
• the value of 2km/hr given in the question is actually 22km/hr
  horse
  time taken= 6hrs
  speed=22km/h
  dist= 22*6=132km
  
  dog
  time=6+2=8hr
  dist=132 km
  speed=dist/time=132/8=16.5km/hr
  (c) 16.5km/hr
• 14 years agoHelpfull: Yes(7) No(4)
• speed of dog has to be less than speed of horse so that horse can catch it. None of options is correct.
• 14 years agoHelpfull: Yes(3) No(4)
• Speed of dog will be 3/4 th of horse speed.
  
  Some persons simply copy paste the solution without reading the data given.
  Here speed of dog is 2 km/hr and not 22 km/hr.
  Ravi has done a good job by changing the data to identify copy paste solutions.
• 14 years agoHelpfull: Yes(2) No(4)
• plz enter right question, confusion can be created........
• 14 years agoHelpfull: Yes(1) No(0)