There are two societies 'A' and 'B'. Each society contains a certain number of employees who are working in 'public' sector jobs and 'private' sector jobs. The total number of employees living in society 'A' and society 'B', is in the ratio of 7 : 8 respectively. The number of employees who are working in 'public' sector jobs' and 'private' sector jobs in society 'A' is in the ratio of 3 : 2 respectively. The number of employees who are working in 'public' sector jobs and in 'private' sector jobs in society 'B' is in the ratio of 5 : 3 respectively. The difference between the number of employees who are working in 'private' sector jobs for both societies is 16.