# resource requirements for each product and the total resources Quantitative analysis, business and finance homework help

1. Southern Sporting Good Company makes basketballs and footballs.
Each product is produced from two resources rubber and leather. Each
basketball produced results in a profit of \$11 and each football earns
\$15 in profit. The resource requirements for each product and the total
resources available are as follows:
Product
Resource Requirements per Unit Rubber (lb.) Leather (ft2) Basketball 2.8 3.7 Football 1.5 5.2 Total resources available 600 900

a. Find the optimal solution.

b. What would be the effect on the optimal solution if the profit for the basketball changed from \$11 to \$12?

c.
What would be the effect on optimal solution if 400 additional pounds
of rubber could be obtained? What would be the effect if 600 additional
square feet of leather could be obtained?

2. A company produces
two products, A and B, which have profits of \$9 and \$7, respectively.
Each unit of product must be processed on two assembly lines, where the
required production times are as follows:
Product
Resource Requirements per Unit Line 1 Line 2 A 11 5 B 6 9 Total Hours 65 40

a. Formulate a linear programming model to determine the optimal product mix that will maximize profit.

b. What are the sensitivity ranges for the objective function coefficients?

c.
line 1 and line 2 and indicate whether the company would prefer
additional line 1 or line 2 hours.

3. Formulate and solve the model for the following problem:
Irwin
Textile Mills produces two types of cotton cloth denim and corduroy.
Corduroy is a heavier grade of cotton cloth and, as such, requires 8
pounds of raw cotton per yard, whereas denim requires 6 pounds of raw
cotton per yard. A yard of corduroy requires 4 hours of processing time;
a yard od denim requires 3.0 hours. Although the demand for denim is
practically unlimited, the maximum demand for corduroy is 510 yards per
month. The manufacturer has 6,500 pounds of cotton and 3,000 hours of
processing time available each month. The manufacturer makes a profit of
\$2.5 per yards of denim and \$3.25 per yard of corduroy. The
manufacturer wants to know how many yards of each type of cloth to
produce to maximize profit. Formulate the model and put it into standard
form. Solve it

a. How much extra cotton and processing time are left over at the optimal solution? Is the demand for corduroy met?

b.
If Irwin Mills can obtain additional cotton or processing time, but not

4.
The Bradley family owns 410 acres of farmland in North Carolina on which
they grow corn and tobacco. Each acre of corn costs \$105 to plant,
cultivate, and harvest; each acre of tobacco costs \$210. The Bradleys’
have a budget of \$52,500 for next year. The government limits the number
of acres of tobacco that can be planted to 100. The profit from each
acre of corn is \$300; the profit from each acre of tobacco is \$520. The
Bradleys’ want to know how many acres of each crop to plant in order to
maximize their profit.

a. Formulate the linear programming model for the problem and solve.

b.
How many acres of farmland will not be cultivated at the optimal
solution? Do the Bradleys use the entire 100-acre tobacco allotment?

c.
The Bradleys’ have an opportunity to lease some extra land from a
neighbor. The neighbor is offering the land to them for \$110 per acre.
Should the Bradleys’ lease the land at that price? What is the maximum
price the Bradleys’ should pay their neighbor for the land, and how much
land should they lease at that price?