The given bar graph shows the sales of computer from six dealer 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 ?
1
25 : 39
2
37 : 21
3
21 : 37
4
39 : 25