On Mon, 24 Dec 2007 10:30:31 -0800 (PST), Jack )
wrote:

1960's
A logger cuts and sells a truckload of lumber for $100. His cost of
production is four-fifths of that amount, and the taxes on the sale
are 7%. What is his net profit?"

Yeah I understand that, can't be arsed to actually work it out though.

1970's (new math)
A logger exchanges a set L of lumber for a set M of money. The
cardinality of M is 100. The set C of production costs contains 20
fewer items than does M. What is the cardinality of the set P of
profits?

Pardon? I was actually at secondary school in the 70's and sets were
touched on but that was about it.

1980's
A logger sells a truckload of lumber for $100. His cost is $80 so his
profit is $20. Circle the number 20.

Hum, some of the kids primary stuff they bring home is rather too similar
to that for my likeing. Mind you they have touched on sets...

1990's
A redneck logger massacres a beautiful stand of trees to make a profit
of $20. Write an essay explaining how you feel about this ruthless
capitalistic exploitation. Try to explain how the birds and the
squirrels feel.

Swampy!

--
Cheers
Dave. pam is missing e-mail