In algebra class we used to get problems like this: A 15,000-gallon water tank is 1/3 full. It is leaking two gallons per hour. It can be filled at five gallons per hour. How long will it take to fill the tank? I know how to do the math. But the real solution to this problem never appears in a textbook: Repair the tank.
Linda D. publishes excerpts from her semiautobiographical memoirs.
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