Three activities are candidates for crashing on a project network for a large computer installation (all are, of course, critical). Activity details are in the following table:

(a) What action would you take to reduce the critical path by 1 day?
(b) Assuming no other paths become critical, what action would you take to reduce the critical path one additional day?
(c) What is the total cost of the 2-day reduction?

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Norma Normal Crash Crash Activity Predecessor Time Cst Time Cost 7 days $6,000 6 days $6,600 4 days 1200 2 days 3,000 11 days 4,000 9 days 6,000