The City of Hope Has a Labor Force of 1000

Multiple Choice

The city of Hope has a labor force of 1000.Twenty people lose their jobs each month and remain unemployed for exactly one month before finding jobs.On January 1,May 1,and September 1 of each year,50 people lose their jobs for a period of four months before finding new jobs.What is the average duration of an unemployment spell?

A) 2) 15 months
B) 2) 85 months
C) 3) 14 months
D) 3) 43 months