Note: Attempt all questions as per rubric. Problems including case study has a weightage of $10$ marks each. The maximum you can score is $50.$ Use QM for Windows wherever possible.

Problem$-1$:

Sid Davidson is the personnel director of Babson and Willcount, a company that specializes in consulting and research. One of the training programs that Sid is considering for the middle$-$ level managers of Babson and Willcount is leadership training. Sid has listed several activities that must be completed before a training program of this nature could be conducted. The activities and immediate predecessors appear in the following table:

Activity Immediate Predecessors A$$ B$$ C$$ DB

E A$,$ D FC G E$,$ F

Develop a network for this problem.