(1) Using Venn diagrams, give two examples of using AND and OR to describe a set of objects of your choosing. Submit a diagram if you’d like, but it’s fine for you to submit a description of the members of each of the sets from your diagrams.
(2) You’re given nine silver dollars, all of which are weighted equally, except one, which is 1/4 oz. lighter. If given a balance to weigh them, what is the least number of weighings needed to determine which is the light coin?
Sample Solution
