My students did this yesterday afternoon. There is a serious typo in Part A Qu 17 and the answer suggested for Part B Qu 6 (length of critical path) is totally incorrect. Cheers, Keith. Keith Richardson IPM List Moderator Head of ICT, Leibler Yavneh College Elsternwick Ph: 03.9528.4911 k.richardson at yavneh.vic.edu.au