Employees at an office were surveyed about what types of hot beverages they drank that day. It was found that 50\%50%50, percent of them drank coffee and 25\%25%25, percent drank tea. The survey showed that 10\%10%10, percent of the employees drank both coffee and tea. For these employees, are the events "drank coffee" and "drank tea" mutually exclusive?
e