A guy goes into a butcher shop. Behind the glass case are several varieties of college student brain for sale. The price board on the wall behind the case indicated the following:

PLU student brain - $1.99 / lb.
CWU student brain - $2.95 / lb.
WSU student brain - $2.24 / lb.
UW student brain - $14.95 / lb.

The guy understood the first three prices, but he was flabbergasted by the price of the UW student brain. When the guy questioned the butcher on the
apparent price discrepancy, the butcher replied, "Buddy, don't you know how many UW students it takes to get a pound of brains?"