Craigburg has a working age population of 20 million. of those, 11 million are employed and 1 million are unemployed. the unemployment rate is and the participation rate is

8.3% - 60%

Explanation:

Unemployment rate is the total of unemployed divided by the total workforce. As the question says, there is 1 million of unemployed and  the people able to work is 12 million (1 million unemployed plus 11 employed). So the unemployment rate is 1/12... which is 8.3%

The participation rate is the employed plus the people that have no job but are actively seeking for a job, divided by the population that is in working age. The people who has no job, is in working age and available to work and is actively looking for work is the unemployed (ILO definition of unemployment). So we have 1 million plus the 11 million of employed, we have a total of 12 million. So the participation rate is 12/20... which gives us 60%

answer; i believe the correct answer is (75 years);