| Company | Ratio |
| C1 | 3 : 2 |
| C2 | 1 : 4 |
| C3 | 5 : 3 |
| C4 | 2 : 3 |
| C5 | 9 : 1 |
| C6 | 3 : 4 |
The distribution of employees at the rank of executives, across different companies C1, C2, ..., C6 is presented in the chart given above. The ratio of executives with a management degree to those without a management degree in each of these companies is provided in the table above. The total number of executives across all companies is 10,000.
The total number of management degree holders among the executives in companies C2 and C5 together is __________.
1
600
2
1900
3
225
4
2500