A logger sells a truckload of lumber for $100. His cost ofproduction is 4/5 of t

Question

A logger sells a truckload of lumber for $100. His cost ofproduction is 4/5 of the price.   What is his profit?

Teaching Math in 1960:

A logger sells a truckload of lumber for $100. His cost ofproduction is 4/5 of the price, or $80.   What is hisprofit?

Teaching Math in 1970:

A logger exchanges a set “L” of lumber for a set“M” of money. The cardinality of set“M” is 100. Each element is worth onedollar. Make 100 dots representing the elements of the set“M”. The set “C”, the cost ofproduction contains 20 fewer points that set“M”. Represent the set “C” as a subsetof set “M” and answer the following question: What isthe cardinality of the set “P” of profits?

Teaching Math in 1980:

A logger sells a truckload of lumber for $100. His cost ofproduction is $80 and his profit is $20. Your assignment:Underline the number 20.

Teaching Math in 1990:

By cutting down beautiful forest trees, the logger makes$20. What do you think of this way of making aliving?

Topic for class participation after answering thequestion: How did the forest birds and squirrels feel as the loggercut down the trees? There are no wrong answers.

Teaching Math in 2000:

A logger sells a truckload of lumber for $100. His cost ofproduction is $120. How does Arthur Andersen determine thathis profit margin is $60?

Teaching Math in 2010

What do you think is happening with the logger and thetruckload of lumber problem at the end of this decade? Come up with what youthink the lumber problem might be in the year2010.

Explanation / Answer

A logging company sells a truckload of lumber for $100. The company unwisely gives the underpreforming executives a $150 bonus. How large of a government bailout should the logging company ask for?

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