The given bar graph shows the sales of computers from six dealers A, B, C, D, E and F, during two consecutive years 2015 and 2016. Study the graph and answer the question that follows.

What is the ratio of the total sales from dealers A, B and C taken together for the year 2015 to the sales from dealers D. E and F taken together for the year 2016?

21 : 37

Total Sales of A, B & C in 2015 :  Total Sales of D , E & F in 2016

     ( 200 + 460 + 390 )           :       (675 + 725 + 450 )

                  1050                    :            1850

                    21                      :              37