Comprehension Passage
Instructions: Study the graph of the following times and answer the question based on it.
The sale of articles (in thousand) has been given in two consecutive years 2020 and 2021 by five production companies.
Find the ratio of total sales in the two years of Company C2 and the ratio of total sales in both years of Company C4?
1
9 : 8
2
7 : 9
3
7 : 3
4
5 : 6