Question: If there are 4 projects under consideration (A, B, C and D) and x 1 , x 2 , x 3 and x 4 are

If there are 4 projects under consideration (A, B, C and D) and x₁, x₂, x₃ and x₄ are 0-1 variables whose values indicate whether a project is selected or not. Which constraint needs to be added to the formulation if three projects must be selected:

		x₁ + x₂ + x₃ + x₄ = 3
		x₁ + x₂ + x₃ + x₄ = 2
		x₁ + x₂ + x₃ + x₄ 3
		x₁ + x₂ + x₃ + x₄ = 1

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related General Management Questions!

URGENT HELP PLEASE A manufacturing firm has four plants and wants to find the most efficient means of meeting the requirements of its four customers. The relevant information for the plants and...

URGENT HELP PLEASE Answer all please Exhibit 2. Use this graph to answer the question. rerer Exnbit 2. Which point (A,B,C,D, or E) is optimal? a) Point A is optimal. b) Point E is optimal. c) Point C...

Let x 1 , x 2 , and x 3 be 0-1 variables whose values indicate whether the projects are not done (0) or are done (1). Which of the following answers indicates that at least one of the projects must...

Let x1 and x2 be 0-1 variables whose values indicate whether projects 1 and 2 are not done or are done. Which answer below indicates that project 2 can be done only is project 1 is done. A. x1 + x2 =...

Let X1, X2, X3, and 4 be 0-1 variables whose values indicate whether the projects are not done (O) or are done (1). Which of the following answers indicates at least 1 or 3 is selected, or both...

Let x | and \ times 2 be 0 - 1 variables whose values indicate whether projects 1 and 2 are not done or are done. Which answer below indicates that project 2 can be done only if project I is done?

Multiple Choice Question. Read carefully. Let Y1,Y2 and Y3 be 01 variables whose values indicate whether plant i is open. for i=1,2,3. In other words, for i=1,2,3,Yi=1 if plant i is open and Yi=0 if...

The constraint x 1 + x 2 + x 3 + x 4

4. Let X, X,, and X, be 0 - 1 variables whose values indicate whether the projects are not done or are done. Which answer below indicates that at most two of the projects must be done? a. X + X, +X,...

In an otherwise competitive economy there is an externality in the form of pollution. Show what the private market equilibrium implies in terms of where we are on (or inside of) the welfare frontier.

Tishimingo Sand and Gravel paid $800,000 to acquire 1,200,000 cubic yards of sand reserves. The following statements model reflects Tishimingos financial condition just prior to purchasing the sand...

The overall trend in the percentage of U . S . employees who belong to labor unions is a consistent downward curve indicating that fewer workers are joining labor unions. There are several reasons...

atch the compensation objectives with their meanings. Efficiency Efficiency drop zone empty. Fairness Fairness drop zone empty. Compliance Compliance drop zone empty. Improving performance and...