Directions: Answer the questions based on the information given below.
The table given below shows the number of 'HR' employees, the ratio of the number of 'HR' to 'Finance' employees and the difference between the number of 'HR' and 'Finance' employees in four different companies - 'A', 'B', 'C' and 'D'.

Note: The number of 'HR' employees of company 'C' is more than the number of 'Finance' employees of company 'C'.
In company 'D', if the number of 'graduate' HR employees is 66.66% more than the number of 'post graduate' HR employees and in the 'finance' department, the number of 'graduate' finance employees is 40% less than that of the 'post graduate' finance employees, then find the total number of 'post graduate' employees in company 'D'?