|Spoiler Inside: Solution to Puzzle||SelectShow>|
Twenty cents can be represented with two to four coins. This leaves four to two coins for the four dollars. Obviously, the dollar amount will have to be in loonies and toonies only. (Smaller denominations would use too many coins.)
The twenty-cent combinations are:
The four-dollar combinations are:
There are nine ways to combine these, but the limit is six coins.
Two toonies can be combined with any of the twenty-cent combinations.
There are six ways to buy my yummy, chocolate-coated, ice cream thing on a stick.