Question: On May 1, a lazy MBA student suddenly realizes that he has done nothing on seven different homework assignments and projects that are due in various courses. He estimates the time required to complete each project (in days) and also notes their due dates:

Because projects 1, 3, and 5 are from  the same class, he decides to do those in the sequence that they are  due. Furthermore, project 7 requires results from projects 2 and 3, so 7  must be done after 2 and 3 are completed. Determine the sequence in  which he should do the projects in order to minimize the maximum  lateness.