What does the self-help laundry system consist of?

The self-help laundry system typically consists of a combination of washers and dryers that allows users to complete their laundry tasks efficiently. When considering the configuration of the system, having 10 washers and 20 dryers creates a balance that facilitates a smoother workflow.

With this setup, more dryers than washers means that after washing, users can quickly transfer their clothes to an empty dryer, minimizing wait times. This configuration is particularly useful in environments where a high volume of laundry is expected, as it effectively meets the demands of multiple users simultaneously.

In contrast, other configurations, such as having fewer dryers or a more equal ratio of washers to dryers, might lead to bottlenecks or longer waiting times for users. Thus, the choice of 10 washers and 20 dryers stands out as the most practical solution for a self-help laundry system.