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The following precedence diagram shows all the activities involved in the construction of one floor of a high-rise building. The duration of each activity

The following precedence diagram shows all the activities involved in the construction of one floor of a high-rise building. The duration of each activity is also given (in days). There are 30 typical floors to be constructed for this high-rise building. When Should Activity D Start? A 2 4 3 B4 F2 E6

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