Final answer:
To determine the number of tables that can be served in 20 minutes with 20 servers, we need to calculate the total time it takes to serve one table. The total time to serve one table is 6 minutes. Therefore, we can serve a maximum of 3.33 tables in 20 minutes with 20 servers.
Step-by-step explanation:
To determine the number of tables that can be served in 20 minutes with 20 servers, we need to calculate the total time it takes to serve one table.
- It takes 5 minutes to get the meals and bring them out to the tables.
- It takes 15 seconds to serve each guest, and there are 8 guests per table.
So the total time to serve one table is 5 minutes + (15 seconds × 8) = 6 minutes.
Next, we divide the total time available (20 minutes) by the time to serve one table (6 minutes):
20 minutes ÷ 6 minutes = 3.33 tables.
Since we cannot serve a fraction of a table, we round our answer to two decimal places. Therefore, we can serve a maximum of 3.33 tables in 20 minutes with 20 servers.