Question: A partial information about a project with 91 activities is shown below. The immediate predecessors of activities E, F, and Gare not given in the

A partial information about a project with 91 activities is shown below.

The immediate predecessors of activities E, F, and Gare not given in the problem.

Activities E and F are the immediate predecessors of activity N.

Activities E and F are the immediate predecessors of activity P.

Activities F and G are the immediate predecessors of activity Q.

Activity N is the immediate predecessor of activity W.

Activities N and P are the immediate predecessors of activity X.

Activities P and Q are the immediate predecessors of activity Y.

The duration of activities E, F, and G are 31, 14, and 22 days, respectively.

The duration of activities N, P, and Q are 19, 24, and 35 days, respectively.

The duration of activities W, X, and Y are 24, 27, and 21 days, respectively.

The latest finish time of activity W is at the end of day 133.

The latest finish time of activity X is at the end of day 139.

The latest finish time of activity Y is at the end of day 142.

Find the latest start time of activities E, F, and G

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