ข้อ 10-20

ข้อ 10-20

The campaign manager for a politician who is running for reelection to a political office is planning the campaign. Four ways to advertise have been selected: TV ads, radio ads, billboards, and newspaper ads. The cost of these are $900 for each TV ad, $500 for each radio ad, $600 for a billboard for one month, and $180 for each newspaper ad. The audience reached by each type of advertising has been estimated to be 40,000 for each TV ad, 32,000 for each radio ad, 34,000 for each billboard, and 17,000 for each newspaper ad. The total monthly advertising budget is $16,000. The following goals have been established and ranked:

1. The number of people reached should be at least 1,500,000.

2. The total monthly advertising budget should not be exceeded.

3. Together, the number of ads on either TV or radio should be at least 6.

4. No more than 10 ads of any one type of advertising should be used.

ให้ :                    X₁ = the number of television ads

                         X₂ = the number of radio ads

                         X₃ = the number of billboard ads

                         X₄ = the number of newspaper ads

Subject to :

                         (1) the number of people reached.

                         (2) the budget.

                         (3) the number of TV or radio ads.

                         (4) restriction on the number of each individual type of ad.