Statement: “The simplest and the most cost effective way to upgrade your home–Exchange your old furniture and get 25% to 33% off on the new furniture”.—An advertisement of a furniture company.

Assumptions

I. Now-a-days, there is no demand for furniture products unless some attractive scheme is offered.

II. Some customers always desire to have best quality and do not bother either for cost or for convenience.

III. Some customers want to keep their home up-todate with reasonable cost and with fewer hassles.