Last Problem:
Think of 5 squares of the same size. How many ways can you combine these squares, edge to edge (with no mirror images), using all 5?
Answer :
12 ways. Try to see if you can figure out all 12.
Today’s problem:
If forty bakers can bake twenty 4th of July cakes in two hours, how many hours will it take for two bakers to bake ten cakes?