7
                           
                           
                              
                           
                           
                           
                           
                                                      
                           
                  
                  
                  
                           
                                                                                 
                           
                              
                                                            
                                 
                                 
                                 
                              
                           
                           
                           
                           
                           
                        
                        
                     
                              Q:
                           
                           
                                                      | A) 75 kmph | B) 80 kmph | 
| C) 86 kmph | D) 90 kmph | 
                              Answer:   B) 80 kmph
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
Let the distance between A and B = D
Given the speed of maruthi = 60 kmph
Maruthi reaches from A to B in 6 hrs 20 min = 6 + 20/60 = 6 1/3 hrs
Now, the distance between A & B = D = speed x time = 60 x 19/3 = 380 kms
As the distance is same for toyato also,
given time for toyato = 4 hrs 45 min = 4 + 45/60 = 4 3/4 = 19/4 hrs
speed of toyato = distance/time = 380/19/4 = 380 x 4/19 = 80 kmph.
 
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