Comprehension Passage
Directions: Answer the questions based on the information given below.
The table provides information on the number of employees working in five different departments across three different companies, denoted as 'X', 'Y', and 'Z'.
| Departments | x + y + z | z - y | x - z |
|---|---|---|---|
| Marketing | 1200 | 80 | 80 |
| Sales | 1620 | 180 | -360 |
| Finance | 1030 | -140 | 50 |
| HR | 1880 | 220 | -540 |
| IT | 880 | 40 | -280 |
Note:
(1) In the given context, the variables 'x', 'y', and 'z' represent the respective number of employees working for companies 'X', 'Y', and 'Z'.
(2) Each employee can only be employed by one company and work in one department.
What is the difference between the number of employees, who work in the 'Finance' and 'HR' departments of company 'Y' and the number of employees, who work in the 'Marketing' and 'IT' departments of company 'X'?
1
420
2
440
3
450
4
460
5
480