A colleague Bill Wardlaw (March 3, 1936-January 2, 2013) used to create a “Problem of the Week” for his students, giving a prize of a cookie if they could solve it. Here is one of them.
Mathematics Problem, #120
A calculus 1 student Joe asks another student Bob “Is the following expression correct?” and writes
on the blackboard. Bob replies, “Well, it could be, but I don’t think that is what you mean.”
Find a function that makes what Joe said correct.
Solution to #119:
There are (about 82 billion) different orders that the spider can put on shoes and socks.