Q:
      
      
         
            
A Bus travels first half distance between two places with a speed of 40 kmph and the rest half distance with a speed of 60 kmph. The average speed of the Bus is ?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: A) 48 kmph         
         
Explanation: we know that speed = distance traveled/time taken
let the total distance traveled by the car is 2x km.
then time taken by it to cover first half is x/60 hour.
and for second half is x/40 hour.
Then average speed= total distance travelled / total time taken.
 
i.e. 
 
=> 
 
= 48 kmph.
       
      
      
      
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