Males in company N and company P =45×800+1200×712=640+700=1340
What is the ratio of the total number of employees (male and female) in companies J, K and N together in 2005 to the total number of employees (male and female) in the same companies together in 2007?
The total number of female employees in company J during all the given years together is what percent of the total number of male employees in company I during all the given years together?