Final answer:
The minimum number of water closets Company X must have is 4.
Step-by-step explanation:
In order to determine the minimum number of water closets Company X must have, we need to consider the requirements stated by the law or regulations of the area where the company is located. The number of water closets needed is generally determined by the number of employees in a company.
As a general rule of thumb, there should be at least one water closet for every 20 employees.
In the case of Company X, which has 75 employees, the minimum number of water closets would be 4 (75 employees divided by 20 = 3.75, rounded up to the nearest whole number).