A Professor Needs Help from Three Student Helpers to Complete

question 33

Multiple Choice

A professor needs help from three student helpers to complete four tasks. The first task is grading; the second is scanning; the third is copying, and the fourth is organizing student portfolios. The estimated time for each student to do each task is given in the matrix below.
$$\begin{array} { r r r r r } & \mathbf { 1 } & \mathbf { 2 } & \mathbf { 3 } & \mathbf { 4 } \\\hline \text { Student A } & 90 & 50 & 40 & 20 \\\mathbf { B } & 120 & 60 & 30 & 50 \\\mathbf { C } & 110 & 60 & 50 & 70 \\\hline\end{array}$$
-Which of the following constraints represents the assignment for task 2, scanning?

• A) X2A +X2B + X2C = 0
• B) X2A +X2B + X2C = 1
• C) X2A +X2B + X2C ? 1
• D) X2A +X2B + X2C ? 0

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Definitions:

Union Contracts

Agreements between employers and labor unions that outline wages, benefits, and working conditions for the union members.

Arbitrator

An independent individual or panel appointed to settle a dispute outside the court system, whose decision is usually binding.

Legally Binding

Agreements or contracts that are enforceable by law, meaning parties must adhere to the agreed terms.

Labor Dispute

A conflict between employees and their employer regarding work conditions or terms of employment.