Distance (miles) District Central School West School South School Student Population
North 8 11 14 700
South 12 9 — 300
East 9 16 10 900
West 8 — 9 600
Central — 8 12 500
Brooks City has three consolidated high schools, each with a capacity of 1,200 students. The school
board has partitioned the city into five busing districts—north, south, east, west, and central—each
with different high school student populations. The three schools are located in the central, west, and
south districts. Some students must be bused outside their districts, and the school board wants to
minimize the total bus distance traveled by these students. The average distances from each district
to the three schools and the total student population in each district are as follows:
Distance (miles)
District
Central
School
West
School
South
School
Student
Population
North 8 11 14 700
South 12 9 — 300
East 9 16 10 900
West 8 — 9 600
Central — 8 12 500
The school board wants to determine the number of students to bus from each district to each
school to minimize the total busing miles traveled.
a. Formulate a linear programming model for this problem and solve the model using the computer.
b. The school board decided that because all students in the north and east districts must be bused,
then at least 50% of the students who live in the south, west, and central districts must also be
bused to another district. Reformulate the linear programming model to reflect this new set of
constraints, and solve by using the computer.
c. The school board has further decided that the enrollment at all three high schools should be
equal. Formulate this additional restriction in the linear programming model, and solve by
using the computer