1) A brand manager for ColPal Products must determine how much time to allocate between radio
and television advertising during the next month. Market research has provided estimates of
the audience exposure for each minute of advertising in each medium, which it would like to
maximize. Costs per minute of advertising are also known, and the manager has a limited
budget of $25000. The manager has decided that because television ads have been found to be
much more effective than radio ads, at least 75% of the time would be allocated to television.
Suppose that we have the following data:
Type of Ad Exposure/Minute Cost/Minute
Radio 350 $400
TV 800 $2,000
a. Identify the decision variables, objective function, and constraints in simple verbal
expressions.
b. Mathematically formulate a linear optimization model.