Given the Partial Project Network Below and the Fact That $\ge$

question 24

Essay

Given the partial project network below and the fact that F can be crashed three times if X_t = start time of Activity i, and Y_i = amount of crash time used for Activity i.
a.Which of the following is correct?
X_F $\ge$ X_D + 10 - Y_D or X_F $\ge$ X_E + 10 + Y_E or Y_D, Y_E $\le$ 0 or X_F - X_D - X_E + 10 $\ge$ 3
b.Which of the following is correct?
y_D $\le$ 3 or y_E $\le$ 3 or y_F = y_D + y_E or y_F $\le$ 3

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Definitions:

Janitor

A person employed to clean and maintain a building, such as an office, a school, or a residential complex.

Mailroom

A dedicated area in an organization where incoming and outgoing mail and packages are processed and distributed.

Independent Agent

An individual or entity that acts in their own interest, usually representing multiple companies in a non-exclusive manner.

Employee

An individual who works part-time or full-time under a contract of employment, whether oral or written, express or implied, and has recognized rights and duties.