Question

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 this time to the project and a second person for one-third of her time, what part oif the third worker's time should be budgeted to this project?
A. 1/3
B. 3/5
C. 1/6
D. 1/8