The table below shows the ratio of the number of employees registered for eye checkup to those registered for dental checkup in four different slots (...
Question
The table below shows the ratio of the number of employees registered for eye checkup to those registered for dental checkup in four different slots (A, B, C, and D) in a company.
| Time Slots | Ratio of Eye Checkup : Dental Checkup |
|---|---|
| A | 5 : 4 |
| B | 7 : 3 |
| C | 11 : 4 |
| D | 1 : 5 |
Note: Employees registered are either for eye checkup or dental checkup.
If the total number of employees registered for eye checkup in slots A and D is 29, and the sum of employees registered for dental checkup in the same slots is 40, what is the difference between the total number of employees in slot A and slot D?