Can you please solve the linear function with clear steps. it is better to be graphically instead of using excel

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
icon
Related questions
Question
100%

Can you please solve the linear function with clear steps. it is better to be graphically instead of using excel  

Question 20:
Janet Lopez is establishing an investment portfolio that will include stock and bond funds. She has OR720,000 to
invest, and she does not want the portfolio to include more than 65% stocks. The average annual return for the stock
fund she plans to invest in is 18%, whereas the average annual return for the bond fund is 6%. She further estimates
that the most she could lose in the next year in the stock fund is 22%, whereas the most she could lose in the bond
fund is 5%. To reduce her risk, she wants to limit her potential maximum losses to OR100,000.
Transcribed Image Text:Question 20: Janet Lopez is establishing an investment portfolio that will include stock and bond funds. She has OR720,000 to invest, and she does not want the portfolio to include more than 65% stocks. The average annual return for the stock fund she plans to invest in is 18%, whereas the average annual return for the bond fund is 6%. She further estimates that the most she could lose in the next year in the stock fund is 22%, whereas the most she could lose in the bond fund is 5%. To reduce her risk, she wants to limit her potential maximum losses to OR100,000.
Expert Solution
LPP Formulation

First let us define the variables x1 as the stocks and x2 as bonds.

Now since the objective is to maximize the returns, the objective function will be:

Max Z = 0.18x1 + 0.06x2

Constraints:

To restrict the total amount to be invested: x1 + x2 <= 720000

To restrict the total losses the constraint is: 0.22x1 + 0.05x2 <= 100000

Now, to make the portfolio to not include more than 65% as stocks:

x1 <= 0.65*(x1+x2)
or
x1 <= 0.65x1 + 0.65x2
x1 - 0.65x1 - 0.65x2 <= 0

so we can reformulate it as 0.35x1 - 0.65x2 <= 0

To make the variables non-negative: x1,x2 >= 0

Final LPP:

Max Z = 0.18x1 + 0.06x2

s.t.

x1 + x2 <= 720000
0.22x1 + 0.05x2 <= 100000
0.35x1 - 0.65x2 <= 0
and x1,x2 > = 0

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
Practical Management Science
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Operations Management
Operations Management
Operations Management
ISBN:
9781259667473
Author:
William J Stevenson
Publisher:
McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi…
Operations and Supply Chain Management (Mcgraw-hi…
Operations Management
ISBN:
9781259666100
Author:
F. Robert Jacobs, Richard B Chase
Publisher:
McGraw-Hill Education
Business in Action
Business in Action
Operations Management
ISBN:
9780135198100
Author:
BOVEE
Publisher:
PEARSON CO
Purchasing and Supply Chain Management
Purchasing and Supply Chain Management
Operations Management
ISBN:
9781285869681
Author:
Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:
Cengage Learning
Production and Operations Analysis, Seventh Editi…
Production and Operations Analysis, Seventh Editi…
Operations Management
ISBN:
9781478623069
Author:
Steven Nahmias, Tava Lennon Olsen
Publisher:
Waveland Press, Inc.