The Baker county government has decided to redo the street and plans to block the street off which causes considerable inconvenience to people. The critical path method (CPM) project has three sequential (in series, that is "i" is first, then "ii" and finally "iii.") paths defined as follows: (i) path A-B-C-H to install street lights and electrical wiring that takes 10 days, (ii) path G-J-K-L to install sidewalks with handicap capabilities that takes 20 days, and (iii) path U-V-Z-W to repave the street including storm drains that takes 8 days. Which one of the following statements is true?

Question

Quizplus · Accepted Answer

The expected duration of the project is the sum of the durations of the three sequential paths: A-B-C-H (10 days), G-J-K-L (20 days), and U-V-Z-W (8 days). Therefore, the expected duration of the project is 10 + 20 + 8 = 38 days. 
Option C is incorrect because normal time and crash time are not mentioned in the given information. Option D is incorrect because the three sub-system precedent relationships are sequential (in series), not parallel.

The Baker County Government Has Decided to Redo the Street