Q1) Sven's Cookhouse is a popular restaurant located on Lake Union in Seattle. The owner of the restaurant has been trying to better understand costs at the restaurant and has hired a student intern to conduct an activity-based costing study. The intern, in consultation with the owner, recognized three major activities. She then completed the first-stage allocations of costs to the activity cost pools, using data from last month's operations. The results appear below:
|Activity Cost Pool
|Serving a party of diners
||Number of parties served
|Serving a diner
||Number of diners served
|Serving a drink
||Number of drinks ordered
The above costs include all of the costs of the restaurant except for organization-sustaining costs such as rent, property taxes, and top-management salaries. A group of diners who ask to sit at the same table are counted as a party. Some costs, such as the costs of cleaning linen, are the same whether one person is at a table or the table is full. Other costs, such as washing dishes, depend on the number of diners served.
Prior to the activity-based costing study, the owner knew very little about the costs of the restaurant. He knew that the total cost for the month (including organization-sustaining costs) was $180,000 and that 12,000 diners had been served. Therefore, the average cost per diner was $15.
According to the activity-based costing system, what is the total cost of serving each of the following parties of diners?
a. A party of four diners who three drinks in total.
b. A party of four diners who do not order any drinks.
c. A lone diner who orders two drinks