The number of cars passing the road near a colony from 6 to 12 noon has been shown in the following histogram.

What is the ratio of the number of cars passed between 6 am and 8 am to the number of cars between 9 am and 11 am ?

5 : 6 

cars passed between 6 am and 8 am : cars passed between 9 am and 11 am

      105 + 70                                   :             115 + 95

         175                                        :                 210

           5                                          :                  6