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(Yard) Group Assignment (Qantitative)

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YARDSTICK INTERNATIONAL COLLEGE

QANTITATIVE ANALYSIS FOR MANAGEMENT DECISION


GROUP ASSIGNMNET
1. A company is making two products A and B. The cost of producing one unit of product A
and B is $ 60 and $ 80 respectively. As per the agreement, the company has to supply at least
200 units of product B to its regular customers. One unit of product A requires one machine
hours whereas product B has machine hours available abundantly within the company. Total
machine hours available for product A are 400 hours. One unit of each product A and B
requires one labour hour each and total of 500 labour hours are available. The company
wants to minimize the cost of production by satisfying the given requirement.
A. Formulate the problem as a linear programming problem.
B. Compute the solution using Graphic method
2. Solve the following problem by simplex and Graphic method
Maximise Z = 30x1 + 40x2
Subject to, 60x1 + 120x2 < 12,000
8x1 + 5x2 < 600
3x1 + 4x2 < 500
x1, x2 > 0
3. Dorian makes luxury cars and jeeps for high-income men and women. It wishes to advertise
with 1 minute spots in comedy shows and football games. Each comedy spot costs $50K and
is seen by 7M high-income women and 2M high-income men. Each football spot costs
$100K and is seen by 2M high-income women and 12M high-income men. How can Dorian
reach 28M high-income women and 24M highincome men at the least cost?
A. Formulate the problem as a linear programming problem.
B. Compute the solution using Graphic method
4. Powerco has three electric power plants that supply the needs of four cities. Each power plant
can supply the following numbers of kwh of electricity: plant 1, 35 million; plant 2, 50
million; and plant 3, 40 million. The peak power demands in these cities as follows (in kwh):
city 1, 45 million; city 2, 20 million; city 3, 30 million; city 4, 30 million. The costs of
sending 1 million kwh of electricity from plant to city is given in the table below. To
minimize the cost of meeting each city’s peak power demand.
A. Formulate a balanced transportation problem in a transportation tableau
B. Find minimum transportation cost using Northwest corner, least cost and VAM methods
5. Solve the following LLP by graphical method (5pt)
Z max = 40X1 + 30X2
Subject to:
3x1 + x2 ≤ 12
x1 + x2 ≤ 6
5x1 + 3x2 ≤ 27
X1 , X2 0
6. Solve the following LLP by graphical method (5pt)
Z min. : 50X1 + 80X2
Subject to
20X1 + 30X2 1400
10X1 + 40X2 1200
X1 , X2  0
7. Find the assignment of salesmen to various districts which will result minimum cost.(5pt)

Salesman District
1 2 3 4
A 16 10 14 11
B 14 11 15 15
C 15 15 13 12
D 13 12 14 15

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