7. Three people who work full-time are to work together on a project, but their total time on the project is to be equivalent to that of only one person working full-time. If one of the people is budgeted for one-half of his time to the project and a second person for one- third of her time, what part of the third worker's time should be budgeted to this project? 13.3% 35.2% 16.7% 18.7%