Study the given bar-graph and answer the question that follows.
The bar-graph shows the production of refrigerators (in thousand) by five different companies A, B, C, D and E during 2004 to 2007.
What is the ratio of the average production of the refrigerators by companies A, B and E taken together for the year 2004-2005 to the average production of the refrigerators by companies C and D taken together for the year 2005-2006?
1
19 : 41
2
19 : 43
3
41 : 19
4
43 : 19