The line graph given below shows the number of employees in different departments of two companies X and Y in 2017. In 2018, the number of employees in marketing department of company X and Y increased by 10% respectively as compared to previous year in the same department. Find the ratio of employees in marketing department of company X and Y in 2018.
1
1 ∶ 3
2
1 ∶ 2
3
2 ∶ 3
4
4 ∶ 1