The following bar graph shows exports of cars of type A and B (in millions) from 2014 to 2018.

What is the ratio of the total exports of cars of type A in 2014 and 2017 to the total exports of cars of type B in 2015 and 2016?

5 : 6 

Export of car A in 2014& 2017  :  Export of car B in 2015 & 2016

                    (200+175)           :     ( 250+200)

                       375                  :          450 

                         5                    :           6