Q:
      
      
         
            
A 200 m long train passes a motorcycler, running in the same direction at 12 km/hr, in 15 second and a jeep travelling in the same direction in 20 s. At what speed is the car travelling (length of both the motorcycler and jeep is negligible)? 
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) 24 kmph         
         
Explanation: Let the speed of the train be 'S' kmph
From the given data,
Distance = Length of train = D = 200 mts = 200 x 18/5 kms
Time = 10 sec
given speed of the motorcycler = 12 kmph
Relative speed as they are moving in the same direction = (S - 12) kmph
Hence, the speed of the train = S = 60 kmph
Now,
Let the speed of the jeep be 'x' kmph
 
Therefore, the speed of the jeep = x = 24 kmph.
       
      
      
      
          View Answer
          Report Error
          Discuss