To estimate the number of workdays an employee will use for vacation or illness, you can calculate 15% of the total scheduled workdays.
Given:
- Total scheduled workdays = 240
- Percentage used for vacation or illness = 15%
Calculation: \[ \text{Days used for vacation or illness} = \text{Total workdays} \times \left(\frac{\text{Percentage}}{100}\right) \] \[ \text{Days used} = 240 \times 0.15 = 36 \]
Therefore, the business estimates that an employee will use 36 days for vacation or illness.
The correct answer is 36.