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Problem 3 - Entrance Test

At a certain company, the average time an employee has been with the company is 10 years. If 10 new employees, each with 0 years of experience, were to join the company, which of the following best describes the effect on the average years of experience of all the employees at the company?

Correct: C

The addition of 10 new employees with zero experience each would contribute 0 to the total sum of years of experience, but it would increase the number of employees. This means that the average years of experience would decrease, but not significantly, hence, 'less than 1 year'.