"Let's assume that this is part time worker. We can't say for certain how many hours they would get in a given week, so we will assume that they work 20 hours per week.
It was stated that they worked at McDonald's for 2.5 years. With 52 weeks per year, this would give us a total of 130 weeks (52 x 2.5 = 130).
At 20 hours per week, for 130 weeks, we have a total of 2,600 hours worked (20 x 130 = 2,600).
The remaining variable is how many orders of 10 piece nuggets occur each hour. Each order represents 1 free nugget. There are many factors which determine how many orders there are per hour:
-The number of 10 piece nuggets ordered would be higher during peak dining hours, and lower during off peak hours.
-Nuggets aren't served during breakfast hours.
-Location would have a major impact on this number. We would expect a location in a densely populated area to have lots of customers (and therefore more orders of 10 pice nuggets each hour). We could assume that a store in a more remote location would experience a smaller number of customers.
For simplicity, let's assume that there are 10 orders of 10 piece nuggets per hour.
With the assumptions above, we have the employee working for 2,600 hours, giving away 10 free nuggets in each of those hours.
2,600 hours x 10 free nuggets per hour = 26,000 free nuggets"