Comprehension Passage
Direction:- The given table represents the number of employees recruited by four companies A, B, C and D in the five years. Study the table carefully and answer the following questions.
Find the ratio of the total number of employees recruited by company A in 2017 and company B in 2020 together to the total number of employees recruited by company C in 2018 and company D in 2019 together.
1
3 ∶ 5
2
4 ∶ 9
3
4 ∶ 7
4
5 ∶ 9