At the time of admission, 35 percent of all doctorate students at a particular business school have a Ph.D. in a non-business related field. Meantime, 45 newly admitted students have a master's degree as their highest degree. Exactly how many Ph.D. students are there at this business school based on the following statistics at the time of admission for the entire program?
1. 35 have a doctorate degree completed in a non-business related field.
2. 45 percent have a master's degree as their highest degree.