Nu Delta30 / 089 / 9YesNoLength determined by pledge performance. Five or six hours per week; pledge activities designed to familiarize pledges with the house, its history, MIT, and Boston as well as build strong relationships amongst classes.Freshmen required to perform same tasks as upperclassmen primarily in weekly clean-up duties; 3 hours per week average; Work Week required once prior to the school year.Six, Two, SevenTrack and Field, Crew, Squasha) 10% b) 30% c) 40% d) 20%Alumni role is limited.40% White, 40% Hispanic, 10% African-American, 10% Asian