Comprehension Passage
Directions: Read the data carefully and answer the following questions.
The following table shows the number of public sector employees living in a building, the ratio of public to private sector employees, and the percentage of vacant flats in the building.
| Building | Public Sector Employees | Ratio (Public : Private) | % of Vacant Flats |
|---|---|---|---|
| A | 120 | 3 : 2 | 20% |
| B | a | 3 : 5 | 20% |
| C | 90 |
2:3 |
25% |
| D | 2a | 5 : 4 | 55% |
Note:
1) The total number of flats in each building is equal to the sum of public sector employees, private sector employees, and vacant flats.
2) The total number of public sector employees in all buildings together is 300.
If the number of private sector employees in Building B increases by 40% and the number of public sector employees in Building D decreases by 25%, what is the new ratio of private sector employees in Building B to public sector employees in Building D?
1
8:5
2
14:9
3
10:3
4
11:6
5
9:4