Given the following German autobahn repair project, find the probability of completion by 17 weeks and by 24 weeks.

If the firm can complete the project within 18 weeks, it will receive a bonus of € 10,000. But if the project is delayed beyond 22 weeks, it must pay a penalty of € 5000. If the firm can choose whether or not to bid on this project, what should its decision be if this is normally only a breakeven project?

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Activity A B C D Optimistic 5 10 2 1 Times (weeks) Required Most likely Pessimistic precedence 11 10 11 10 5 7 8 13 A