Answer:
On average, the company has 2000 employees.
Step-by-step explanation:
Since, due to a turnover, a company hires 400 employees each year, on average; assuming that an average stay of an employee in the company is 5 years, to determine, on average, how many employees does the company have, the following calculation must be performed:
Year 0 = 0
Year 1 = 400 (+400)
Year 2 = 800 (+400)
Year 3 = 1200 (+400)
Year 4 = 1600 (+400)
Year 5 = 2000 (+400)
Year 6 = 2000 (+400 -400)
Year 7 = 2000 (+400 - 400)
Therefore, on average, the company has 2000 employees.