Three Critical Path Activities from the Same Critical Path Are

question 69

Essay

Three critical path activities from the same critical path are candidates for crashing on a CPM network. Activity details are in the table below.
(a) What is the crash cost per unit time for activity A?
(b) What is the crash cost per unit time for activity B?
(c) Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost?
(d) Assuming no other paths become critical, which activity should be the next activity crashed to cut a second day from the project's duration; how much is added to project cost?
(e) Assuming no other paths become critical, how much can this project be shortened at what total added cost?

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Definitions:

Peptidoglycan Cell Wall

The peptidoglycan cell wall is a rigid and supportive layer found in the cell walls of most bacteria, providing structural strength and protecting against osmotic pressure.

Nuclear Membrane

The lipid bilayer membrane which encloses the nucleus, separating its contents from the cytoplasm and regulating molecule passage.

Ribosomes

The cellular structures responsible for protein synthesis, found floating freely within the cytoplasm or attached to the endoplasmic reticulum.

Cellular Respiration

The metabolic process by which cells produce energy in the form of ATP from glucose, involving various biochemical pathways including glycolysis and the Krebs cycle.