Answer :
To process 100 cups per hour during rush hour, we divide the desired output by the output per server per hour: 100 cups / 20 cups per server per hour = 5 servers needed.
To calculate the number of servers needed for an 8-hour day where 880 cups are served, we divide the desired output by the output per server per hour: 880 cups / 20 cups per server per hour = 44 servers needed.
In summary: For 100 cups per hour during rush hour, 5 servers are needed. A server can process 80 cups in a single 4-hour shift. For an 8-hour day with 880 cups, 44 servers are needed.
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