http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2005exams/pdf_doc/economics_05.pdf
Question 20
Ok, so participation rate = labour force/working age population
and unemployment rate = unemployed people/labour force
for PR i got (9+3)/15 = 80%
but for U/E rate i got 3/(9+3)...